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Finding the Fourth Proportional to 259,553.55, 389,143.35 and 159,506.94

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Solution

The fourth proportional to 259,553.55, 389,143.35 and 159,506.94 is: 239,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,553.55 : 389,143.35 = 159,506.94 : x
  2. Step 2: Convert to fraction form
    259,553.55/389,143.35 = 159,506.94/x
  3. Step 3: Cross multiply
    259,553.55x = 389,143.35 × 159,506.94
  4. Step 4: Simplify right side
    259,553.55x = 62,071,064,979.85
  5. Step 5: Solve for x
    x = 62,071,064,979.85/259,553.55
  6. Step 6: Final answer
    x = 239,145.51

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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.