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Finding the Fourth Proportional to 331,967.80, 497,295.60 and 181,939.60

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Solution

The fourth proportional to 331,967.80, 497,295.60 and 181,939.60 is: 272,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,967.80 : 497,295.60 = 181,939.60 : x
  2. Step 2: Convert to fraction form
    331,967.80/497,295.60 = 181,939.60/x
  3. Step 3: Cross multiply
    331,967.80x = 497,295.60 × 181,939.60
  4. Step 4: Simplify right side
    331,967.80x = 90,477,762,545.76
  5. Step 5: Solve for x
    x = 90,477,762,545.76/331,967.80
  6. Step 6: Final answer
    x = 272,549.82

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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.