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Finding the Fourth Proportional to 479,322.60, 718,983.90 and 163,732.20

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Solution

The fourth proportional to 479,322.60, 718,983.90 and 163,732.20 is: 245,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,322.60 : 718,983.90 = 163,732.20 : x
  2. Step 2: Convert to fraction form
    479,322.60/718,983.90 = 163,732.20/x
  3. Step 3: Cross multiply
    479,322.60x = 718,983.90 × 163,732.20
  4. Step 4: Simplify right side
    479,322.60x = 117,720,815,711.58
  5. Step 5: Solve for x
    x = 117,720,815,711.58/479,322.60
  6. Step 6: Final answer
    x = 245,598.30

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Similar ratio
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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.