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Finding the Fourth Proportional to 273,875.67, 411,151.80 and 129,919.13

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Solution

The fourth proportional to 273,875.67, 411,151.80 and 129,919.13 is: 195,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,875.67 : 411,151.80 = 129,919.13 : x
  2. Step 2: Convert to fraction form
    273,875.67/411,151.80 = 129,919.13/x
  3. Step 3: Cross multiply
    273,875.67x = 411,151.80 × 129,919.13
  4. Step 4: Simplify right side
    273,875.67x = 53,416,482,098.18
  5. Step 5: Solve for x
    x = 53,416,482,098.18/273,875.67
  6. Step 6: Final answer
    x = 195,039.17

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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.