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Finding the Fourth Proportional to 359,149.20, 538,648.20 and 181,489.20

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Solution

The fourth proportional to 359,149.20, 538,648.20 and 181,489.20 is: 272,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,149.20 : 538,648.20 = 181,489.20 : x
  2. Step 2: Convert to fraction form
    359,149.20/538,648.20 = 181,489.20/x
  3. Step 3: Cross multiply
    359,149.20x = 538,648.20 × 181,489.20
  4. Step 4: Simplify right side
    359,149.20x = 97,758,830,899.44
  5. Step 5: Solve for x
    x = 97,758,830,899.44/359,149.20
  6. Step 6: Final answer
    x = 272,195.60

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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.