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Finding the Fourth Proportional to 482,140.32, 665,292.12 and 267,278.40

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Solution

The fourth proportional to 482,140.32, 665,292.12 and 267,278.40 is: 368,810.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,140.32 : 665,292.12 = 267,278.40 : x
  2. Step 2: Convert to fraction form
    482,140.32/665,292.12 = 267,278.40/x
  3. Step 3: Cross multiply
    482,140.32x = 665,292.12 × 267,278.40
  4. Step 4: Simplify right side
    482,140.32x = 177,818,213,366.21
  5. Step 5: Solve for x
    x = 177,818,213,366.21/482,140.32
  6. Step 6: Final answer
    x = 368,810.09

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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.