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Finding the Fourth Proportional to 359,305.92, 539,075.52 and 172,332

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Solution

The fourth proportional to 359,305.92, 539,075.52 and 172,332 is: 258,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,305.92 : 539,075.52 = 172,332 : x
  2. Step 2: Convert to fraction form
    359,305.92/539,075.52 = 172,332/x
  3. Step 3: Cross multiply
    359,305.92x = 539,075.52 × 172,332
  4. Step 4: Simplify right side
    359,305.92x = 92,899,962,512.64
  5. Step 5: Solve for x
    x = 92,899,962,512.64/359,305.92
  6. Step 6: Final answer
    x = 258,553.94

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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.