Home / 231,340.86-347,011.29-81,502.20

Finding the Fourth Proportional to 231,340.86, 347,011.29 and 81,502.20

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Solution

The fourth proportional to 231,340.86, 347,011.29 and 81,502.20 is: 122,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,340.86 : 347,011.29 = 81,502.20 : x
  2. Step 2: Convert to fraction form
    231,340.86/347,011.29 = 81,502.20/x
  3. Step 3: Cross multiply
    231,340.86x = 347,011.29 × 81,502.20
  4. Step 4: Simplify right side
    231,340.86x = 28,282,183,559.84
  5. Step 5: Solve for x
    x = 28,282,183,559.84/231,340.86
  6. Step 6: Final answer
    x = 122,253.30

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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.