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Finding the Fourth Proportional to 188,879.40, 283,319.10 and 181,621.80

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Solution

The fourth proportional to 188,879.40, 283,319.10 and 181,621.80 is: 272,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,879.40 : 283,319.10 = 181,621.80 : x
  2. Step 2: Convert to fraction form
    188,879.40/283,319.10 = 181,621.80/x
  3. Step 3: Cross multiply
    188,879.40x = 283,319.10 × 181,621.80
  4. Step 4: Simplify right side
    188,879.40x = 51,456,924,916.38
  5. Step 5: Solve for x
    x = 51,456,924,916.38/188,879.40
  6. Step 6: Final answer
    x = 272,432.70

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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.