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Finding the Fourth Proportional to 448,673.80, 672,779.85 and 133,089.70

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Solution

The fourth proportional to 448,673.80, 672,779.85 and 133,089.70 is: 199,566.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,673.80 : 672,779.85 = 133,089.70 : x
  2. Step 2: Convert to fraction form
    448,673.80/672,779.85 = 133,089.70/x
  3. Step 3: Cross multiply
    448,673.80x = 672,779.85 × 133,089.70
  4. Step 4: Simplify right side
    448,673.80x = 89,540,068,402.55
  5. Step 5: Solve for x
    x = 89,540,068,402.55/448,673.80
  6. Step 6: Final answer
    x = 199,566.07

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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.