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Finding the Fourth Proportional to 482,512.56, 665,864.88 and 267,650.40

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Solution

The fourth proportional to 482,512.56, 665,864.88 and 267,650.40 is: 369,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,512.56 : 665,864.88 = 267,650.40 : x
  2. Step 2: Convert to fraction form
    482,512.56/665,864.88 = 267,650.40/x
  3. Step 3: Cross multiply
    482,512.56x = 665,864.88 × 267,650.40
  4. Step 4: Simplify right side
    482,512.56x = 178,219,001,477.95
  5. Step 5: Solve for x
    x = 178,219,001,477.95/482,512.56
  6. Step 6: Final answer
    x = 369,356.19

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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.