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Finding the Fourth Proportional to 255,031.52, 351,956.76 and 141,854

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Solution

The fourth proportional to 255,031.52, 351,956.76 and 141,854 is: 195,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,031.52 : 351,956.76 = 141,854 : x
  2. Step 2: Convert to fraction form
    255,031.52/351,956.76 = 141,854/x
  3. Step 3: Cross multiply
    255,031.52x = 351,956.76 × 141,854
  4. Step 4: Simplify right side
    255,031.52x = 49,926,474,233.04
  5. Step 5: Solve for x
    x = 49,926,474,233.04/255,031.52
  6. Step 6: Final answer
    x = 195,765.90

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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.