Home / 545,815.40-818,723.10-166,735.40

Finding the Fourth Proportional to 545,815.40, 818,723.10 and 166,735.40

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Solution

The fourth proportional to 545,815.40, 818,723.10 and 166,735.40 is: 250,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,815.40 : 818,723.10 = 166,735.40 : x
  2. Step 2: Convert to fraction form
    545,815.40/818,723.10 = 166,735.40/x
  3. Step 3: Cross multiply
    545,815.40x = 818,723.10 × 166,735.40
  4. Step 4: Simplify right side
    545,815.40x = 136,510,123,567.74
  5. Step 5: Solve for x
    x = 136,510,123,567.74/545,815.40
  6. Step 6: Final answer
    x = 250,103.10

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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.