Home / 331,621.60-497,086.80-181,631.20

Finding the Fourth Proportional to 331,621.60, 497,086.80 and 181,631.20

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Solution

The fourth proportional to 331,621.60, 497,086.80 and 181,631.20 is: 272,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,621.60 : 497,086.80 = 181,631.20 : x
  2. Step 2: Convert to fraction form
    331,621.60/497,086.80 = 181,631.20/x
  3. Step 3: Cross multiply
    331,621.60x = 497,086.80 × 181,631.20
  4. Step 4: Simplify right side
    331,621.60x = 90,286,471,988.16
  5. Step 5: Solve for x
    x = 90,286,471,988.16/331,621.60
  6. Step 6: Final answer
    x = 272,257.51

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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.