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Finding the Fourth Proportional to 448,316.48, 672,484.32 and 132,779.84

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Solution

The fourth proportional to 448,316.48, 672,484.32 and 132,779.84 is: 199,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,316.48 : 672,484.32 = 132,779.84 : x
  2. Step 2: Convert to fraction form
    448,316.48/672,484.32 = 132,779.84/x
  3. Step 3: Cross multiply
    448,316.48x = 672,484.32 × 132,779.84
  4. Step 4: Simplify right side
    448,316.48x = 89,292,360,412.11
  5. Step 5: Solve for x
    x = 89,292,360,412.11/448,316.48
  6. Step 6: Final answer
    x = 199,172.60

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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.