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Finding the Fourth Proportional to 445,903.38, 615,347.16 and 254,920.92

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Solution

The fourth proportional to 445,903.38, 615,347.16 and 254,920.92 is: 351,791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,903.38 : 615,347.16 = 254,920.92 : x
  2. Step 2: Convert to fraction form
    445,903.38/615,347.16 = 254,920.92/x
  3. Step 3: Cross multiply
    445,903.38x = 615,347.16 × 254,920.92
  4. Step 4: Simplify right side
    445,903.38x = 156,864,864,146.59
  5. Step 5: Solve for x
    x = 156,864,864,146.59/445,903.38
  6. Step 6: Final answer
    x = 351,791.15

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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.