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Finding the Fourth Proportional to 442,963.31, 664,444.96 and 253,290.63

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Solution

The fourth proportional to 442,963.31, 664,444.96 and 253,290.63 is: 379,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,963.31 : 664,444.96 = 253,290.63 : x
  2. Step 2: Convert to fraction form
    442,963.31/664,444.96 = 253,290.63/x
  3. Step 3: Cross multiply
    442,963.31x = 664,444.96 × 253,290.63
  4. Step 4: Simplify right side
    442,963.31x = 168,297,680,818.59
  5. Step 5: Solve for x
    x = 168,297,680,818.59/442,963.31
  6. Step 6: Final answer
    x = 379,935.94

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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.