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Finding the Fourth Proportional to 475,402.32, 712,952.91 and 155,480.27

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Solution

The fourth proportional to 475,402.32, 712,952.91 and 155,480.27 is: 233,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,402.32 : 712,952.91 = 155,480.27 : x
  2. Step 2: Convert to fraction form
    475,402.32/712,952.91 = 155,480.27/x
  3. Step 3: Cross multiply
    475,402.32x = 712,952.91 × 155,480.27
  4. Step 4: Simplify right side
    475,402.32x = 110,850,107,379.32
  5. Step 5: Solve for x
    x = 110,850,107,379.32/475,402.32
  6. Step 6: Final answer
    x = 233,171.15

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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.