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Finding the Fourth Proportional to 269,070.62, 403,511.40 and 79,480.40

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Solution

The fourth proportional to 269,070.62, 403,511.40 and 79,480.40 is: 119,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,070.62 : 403,511.40 = 79,480.40 : x
  2. Step 2: Convert to fraction form
    269,070.62/403,511.40 = 79,480.40/x
  3. Step 3: Cross multiply
    269,070.62x = 403,511.40 × 79,480.40
  4. Step 4: Simplify right side
    269,070.62x = 32,071,247,476.56
  5. Step 5: Solve for x
    x = 32,071,247,476.56/269,070.62
  6. Step 6: Final answer
    x = 119,192.68

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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.