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Finding the Fourth Proportional to 282,641.60, 423,832.80 and 124,788.80

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Solution

The fourth proportional to 282,641.60, 423,832.80 and 124,788.80 is: 187,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,641.60 : 423,832.80 = 124,788.80 : x
  2. Step 2: Convert to fraction form
    282,641.60/423,832.80 = 124,788.80/x
  3. Step 3: Cross multiply
    282,641.60x = 423,832.80 × 124,788.80
  4. Step 4: Simplify right side
    282,641.60x = 52,889,586,512.64
  5. Step 5: Solve for x
    x = 52,889,586,512.64/282,641.60
  6. Step 6: Final answer
    x = 187,125.98

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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.