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Finding the Fourth Proportional to 636,663.84, 954,996.88 and 210,223.52

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Solution

The fourth proportional to 636,663.84, 954,996.88 and 210,223.52 is: 315,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,663.84 : 954,996.88 = 210,223.52 : x
  2. Step 2: Convert to fraction form
    636,663.84/954,996.88 = 210,223.52/x
  3. Step 3: Cross multiply
    636,663.84x = 954,996.88 × 210,223.52
  4. Step 4: Simplify right side
    636,663.84x = 200,762,805,702.62
  5. Step 5: Solve for x
    x = 200,762,805,702.62/636,663.84
  6. Step 6: Final answer
    x = 315,335.65

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Similar ratio
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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.