Home / 475,681.32-656,415-271,692.18

Finding the Fourth Proportional to 475,681.32, 656,415 and 271,692.18

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Solution

The fourth proportional to 475,681.32, 656,415 and 271,692.18 is: 374,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,681.32 : 656,415 = 271,692.18 : x
  2. Step 2: Convert to fraction form
    475,681.32/656,415 = 271,692.18/x
  3. Step 3: Cross multiply
    475,681.32x = 656,415 × 271,692.18
  4. Step 4: Simplify right side
    475,681.32x = 178,342,822,334.70
  5. Step 5: Solve for x
    x = 178,342,822,334.70/475,681.32
  6. Step 6: Final answer
    x = 374,920.80

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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.