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Finding the Fourth Proportional to 538,569.14, 807,851.27 and 139,175.96

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Solution

The fourth proportional to 538,569.14, 807,851.27 and 139,175.96 is: 208,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,569.14 : 807,851.27 = 139,175.96 : x
  2. Step 2: Convert to fraction form
    538,569.14/807,851.27 = 139,175.96/x
  3. Step 3: Cross multiply
    538,569.14x = 807,851.27 × 139,175.96
  4. Step 4: Simplify right side
    538,569.14x = 112,433,472,348.15
  5. Step 5: Solve for x
    x = 112,433,472,348.15/538,569.14
  6. Step 6: Final answer
    x = 208,763.30

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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.