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Finding the Fourth Proportional to 365,917.68, 549,050.40 and 129,371.76

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Solution

The fourth proportional to 365,917.68, 549,050.40 and 129,371.76 is: 194,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,917.68 : 549,050.40 = 129,371.76 : x
  2. Step 2: Convert to fraction form
    365,917.68/549,050.40 = 129,371.76/x
  3. Step 3: Cross multiply
    365,917.68x = 549,050.40 × 129,371.76
  4. Step 4: Simplify right side
    365,917.68x = 71,031,616,576.70
  5. Step 5: Solve for x
    x = 71,031,616,576.70/365,917.68
  6. Step 6: Final answer
    x = 194,119.12

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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.