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Finding the Fourth Proportional to 239,718.59, 359,484.38 and 89,877.20

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Solution

The fourth proportional to 239,718.59, 359,484.38 and 89,877.20 is: 134,780.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,718.59 : 359,484.38 = 89,877.20 : x
  2. Step 2: Convert to fraction form
    239,718.59/359,484.38 = 89,877.20/x
  3. Step 3: Cross multiply
    239,718.59x = 359,484.38 × 89,877.20
  4. Step 4: Simplify right side
    239,718.59x = 32,309,447,608.37
  5. Step 5: Solve for x
    x = 32,309,447,608.37/239,718.59
  6. Step 6: Final answer
    x = 134,780.74

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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.