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Finding the Fourth Proportional to 259,159.98, 387,862.20 and 159,383.46

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Solution

The fourth proportional to 259,159.98, 387,862.20 and 159,383.46 is: 238,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,159.98 : 387,862.20 = 159,383.46 : x
  2. Step 2: Convert to fraction form
    259,159.98/387,862.20 = 159,383.46/x
  3. Step 3: Cross multiply
    259,159.98x = 387,862.20 × 159,383.46
  4. Step 4: Simplify right side
    259,159.98x = 61,818,819,439.21
  5. Step 5: Solve for x
    x = 61,818,819,439.21/259,159.98
  6. Step 6: Final answer
    x = 238,535.36

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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.