Home / 217,459.08-299,966.08-136,758.60

Finding the Fourth Proportional to 217,459.08, 299,966.08 and 136,758.60

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Solution

The fourth proportional to 217,459.08, 299,966.08 and 136,758.60 is: 188,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,459.08 : 299,966.08 = 136,758.60 : x
  2. Step 2: Convert to fraction form
    217,459.08/299,966.08 = 136,758.60/x
  3. Step 3: Cross multiply
    217,459.08x = 299,966.08 × 136,758.60
  4. Step 4: Simplify right side
    217,459.08x = 41,022,941,148.29
  5. Step 5: Solve for x
    x = 41,022,941,148.29/217,459.08
  6. Step 6: Final answer
    x = 188,646.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.