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Finding the Fourth Proportional to 457,211.84, 630,957.41 and 253,265.88

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Solution

The fourth proportional to 457,211.84, 630,957.41 and 253,265.88 is: 349,509.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,211.84 : 630,957.41 = 253,265.88 : x
  2. Step 2: Convert to fraction form
    457,211.84/630,957.41 = 253,265.88/x
  3. Step 3: Cross multiply
    457,211.84x = 630,957.41 × 253,265.88
  4. Step 4: Simplify right side
    457,211.84x = 159,799,982,419.84
  5. Step 5: Solve for x
    x = 159,799,982,419.84/457,211.84
  6. Step 6: Final answer
    x = 349,509.72

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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.