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Finding the Fourth Proportional to 636,976.52, 955,612.40 and 216,252.40

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Solution

The fourth proportional to 636,976.52, 955,612.40 and 216,252.40 is: 324,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,976.52 : 955,612.40 = 216,252.40 : x
  2. Step 2: Convert to fraction form
    636,976.52/955,612.40 = 216,252.40/x
  3. Step 3: Cross multiply
    636,976.52x = 955,612.40 × 216,252.40
  4. Step 4: Simplify right side
    636,976.52x = 206,653,474,969.76
  5. Step 5: Solve for x
    x = 206,653,474,969.76/636,976.52
  6. Step 6: Final answer
    x = 324,428.72

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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.