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Finding the Fourth Proportional to 448,316.54, 672,476.97 and 132,779.42

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Solution

The fourth proportional to 448,316.54, 672,476.97 and 132,779.42 is: 199,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,316.54 : 672,476.97 = 132,779.42 : x
  2. Step 2: Convert to fraction form
    448,316.54/672,476.97 = 132,779.42/x
  3. Step 3: Cross multiply
    448,316.54x = 672,476.97 × 132,779.42
  4. Step 4: Simplify right side
    448,316.54x = 89,291,102,039.96
  5. Step 5: Solve for x
    x = 89,291,102,039.96/448,316.54
  6. Step 6: Final answer
    x = 199,169.77

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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.