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Finding the Fourth Proportional to 636,989.52, 955,517.76 and 163,678.08

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Solution

The fourth proportional to 636,989.52, 955,517.76 and 163,678.08 is: 245,525.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,989.52 : 955,517.76 = 163,678.08 : x
  2. Step 2: Convert to fraction form
    636,989.52/955,517.76 = 163,678.08/x
  3. Step 3: Cross multiply
    636,989.52x = 955,517.76 × 163,678.08
  4. Step 4: Simplify right side
    636,989.52x = 156,397,312,362.70
  5. Step 5: Solve for x
    x = 156,397,312,362.70/636,989.52
  6. Step 6: Final answer
    x = 245,525.72

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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.