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Finding the Fourth Proportional to 374,808.78, 517,248.35 and 205,042.91

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Solution

The fourth proportional to 374,808.78, 517,248.35 and 205,042.91 is: 282,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,808.78 : 517,248.35 = 205,042.91 : x
  2. Step 2: Convert to fraction form
    374,808.78/517,248.35 = 205,042.91/x
  3. Step 3: Cross multiply
    374,808.78x = 517,248.35 × 205,042.91
  4. Step 4: Simplify right side
    374,808.78x = 106,058,106,876.70
  5. Step 5: Solve for x
    x = 106,058,106,876.70/374,808.78
  6. Step 6: Final answer
    x = 282,965.91

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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.