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Finding the Fourth Proportional to 636,311.20, 954,444.78 and 163,001.20

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Solution

The fourth proportional to 636,311.20, 954,444.78 and 163,001.20 is: 244,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,311.20 : 954,444.78 = 163,001.20 : x
  2. Step 2: Convert to fraction form
    636,311.20/954,444.78 = 163,001.20/x
  3. Step 3: Cross multiply
    636,311.20x = 954,444.78 × 163,001.20
  4. Step 4: Simplify right side
    636,311.20x = 155,575,644,473.74
  5. Step 5: Solve for x
    x = 155,575,644,473.74/636,311.20
  6. Step 6: Final answer
    x = 244,496.16

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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.