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Finding the Fourth Proportional to 457,058.14, 630,738.56 and 255,854.14

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Solution

The fourth proportional to 457,058.14, 630,738.56 and 255,854.14 is: 353,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,058.14 : 630,738.56 = 255,854.14 : x
  2. Step 2: Convert to fraction form
    457,058.14/630,738.56 = 255,854.14/x
  3. Step 3: Cross multiply
    457,058.14x = 630,738.56 × 255,854.14
  4. Step 4: Simplify right side
    457,058.14x = 161,377,071,833.64
  5. Step 5: Solve for x
    x = 161,377,071,833.64/457,058.14
  6. Step 6: Final answer
    x = 353,077.78

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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.