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Finding the Fourth Proportional to 359,072.10, 538,478.55 and 181,520.10

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Solution

The fourth proportional to 359,072.10, 538,478.55 and 181,520.10 is: 272,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,072.10 : 538,478.55 = 181,520.10 : x
  2. Step 2: Convert to fraction form
    359,072.10/538,478.55 = 181,520.10/x
  3. Step 3: Cross multiply
    359,072.10x = 538,478.55 × 181,520.10
  4. Step 4: Simplify right side
    359,072.10x = 97,744,680,243.86
  5. Step 5: Solve for x
    x = 97,744,680,243.86/359,072.10
  6. Step 6: Final answer
    x = 272,214.63

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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.