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Finding the Fourth Proportional to 366,235, 549,355.92 and 129,617.80

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Solution

The fourth proportional to 366,235, 549,355.92 and 129,617.80 is: 194,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,235 : 549,355.92 = 129,617.80 : x
  2. Step 2: Convert to fraction form
    366,235/549,355.92 = 129,617.80/x
  3. Step 3: Cross multiply
    366,235x = 549,355.92 × 129,617.80
  4. Step 4: Simplify right side
    366,235x = 71,206,305,767.38
  5. Step 5: Solve for x
    x = 71,206,305,767.38/366,235
  6. Step 6: Final answer
    x = 194,427.91

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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.