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Finding the Fourth Proportional to 259,328.13, 389,167.16 and 101,536.89

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Solution

The fourth proportional to 259,328.13, 389,167.16 and 101,536.89 is: 152,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,328.13 : 389,167.16 = 101,536.89 : x
  2. Step 2: Convert to fraction form
    259,328.13/389,167.16 = 101,536.89/x
  3. Step 3: Cross multiply
    259,328.13x = 389,167.16 × 101,536.89
  4. Step 4: Simplify right side
    259,328.13x = 39,514,822,608.85
  5. Step 5: Solve for x
    x = 39,514,822,608.85/259,328.13
  6. Step 6: Final answer
    x = 152,373.84

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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.