Home / 691,428.24-1,037,142.12-166,116.24

Finding the Fourth Proportional to 691,428.24, 1,037,142.12 and 166,116.24

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Solution

The fourth proportional to 691,428.24, 1,037,142.12 and 166,116.24 is: 249,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,428.24 : 1,037,142.12 = 166,116.24 : x
  2. Step 2: Convert to fraction form
    691,428.24/1,037,142.12 = 166,116.24/x
  3. Step 3: Cross multiply
    691,428.24x = 1,037,142.12 × 166,116.24
  4. Step 4: Simplify right side
    691,428.24x = 172,286,149,320.03
  5. Step 5: Solve for x
    x = 172,286,149,320.03/691,428.24
  6. Step 6: Final answer
    x = 249,174.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.