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Finding the Fourth Proportional to 159,486.23, 239,253.55 and 54,280.60

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Solution

The fourth proportional to 159,486.23, 239,253.55 and 54,280.60 is: 81,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,486.23 : 239,253.55 = 54,280.60 : x
  2. Step 2: Convert to fraction form
    159,486.23/239,253.55 = 54,280.60/x
  3. Step 3: Cross multiply
    159,486.23x = 239,253.55 × 54,280.60
  4. Step 4: Simplify right side
    159,486.23x = 12,986,825,512.29
  5. Step 5: Solve for x
    x = 12,986,825,512.29/159,486.23
  6. Step 6: Final answer
    x = 81,429.13

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1.5x scale

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.