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Finding the Fourth Proportional to 636,200.80, 953,973.15 and 236,635.90

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Solution

The fourth proportional to 636,200.80, 953,973.15 and 236,635.90 is: 354,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,200.80 : 953,973.15 = 236,635.90 : x
  2. Step 2: Convert to fraction form
    636,200.80/953,973.15 = 236,635.90/x
  3. Step 3: Cross multiply
    636,200.80x = 953,973.15 × 236,635.90
  4. Step 4: Simplify right side
    636,200.80x = 225,744,294,926.09
  5. Step 5: Solve for x
    x = 225,744,294,926.09/636,200.80
  6. Step 6: Final answer
    x = 354,831.83

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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.