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Finding the Fourth Proportional to 282,635.60, 423,737.40 and 142,494.80

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Solution

The fourth proportional to 282,635.60, 423,737.40 and 142,494.80 is: 213,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,635.60 : 423,737.40 = 142,494.80 : x
  2. Step 2: Convert to fraction form
    282,635.60/423,737.40 = 142,494.80/x
  3. Step 3: Cross multiply
    282,635.60x = 423,737.40 × 142,494.80
  4. Step 4: Simplify right side
    282,635.60x = 60,380,376,065.52
  5. Step 5: Solve for x
    x = 60,380,376,065.52/282,635.60
  6. Step 6: Final answer
    x = 213,633.30

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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.