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Finding the Fourth Proportional to 448,045.76, 672,068.64 and 132,478.16

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Solution

The fourth proportional to 448,045.76, 672,068.64 and 132,478.16 is: 198,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,045.76 : 672,068.64 = 132,478.16 : x
  2. Step 2: Convert to fraction form
    448,045.76/672,068.64 = 132,478.16/x
  3. Step 3: Cross multiply
    448,045.76x = 672,068.64 × 132,478.16
  4. Step 4: Simplify right side
    448,045.76x = 89,034,416,820.90
  5. Step 5: Solve for x
    x = 89,034,416,820.90/448,045.76
  6. Step 6: Final answer
    x = 198,717.24

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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.