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Finding the Fourth Proportional to 359,229.40, 538,844.10 and 269,999.80

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Solution

The fourth proportional to 359,229.40, 538,844.10 and 269,999.80 is: 404,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,229.40 : 538,844.10 = 269,999.80 : x
  2. Step 2: Convert to fraction form
    359,229.40/538,844.10 = 269,999.80/x
  3. Step 3: Cross multiply
    359,229.40x = 538,844.10 × 269,999.80
  4. Step 4: Simplify right side
    359,229.40x = 145,487,799,231.18
  5. Step 5: Solve for x
    x = 145,487,799,231.18/359,229.40
  6. Step 6: Final answer
    x = 404,999.70

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1.5x scale

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.