Home / 231,359.39-347,080.24-81,686.58

Finding the Fourth Proportional to 231,359.39, 347,080.24 and 81,686.58

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Solution

The fourth proportional to 231,359.39, 347,080.24 and 81,686.58 is: 122,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,359.39 : 347,080.24 = 81,686.58 : x
  2. Step 2: Convert to fraction form
    231,359.39/347,080.24 = 81,686.58/x
  3. Step 3: Cross multiply
    231,359.39x = 347,080.24 × 81,686.58
  4. Step 4: Simplify right side
    231,359.39x = 28,351,796,591.74
  5. Step 5: Solve for x
    x = 28,351,796,591.74/231,359.39
  6. Step 6: Final answer
    x = 122,544.40

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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.