Home / 231,780.43-347,816.90-98,660.47

Finding the Fourth Proportional to 231,780.43, 347,816.90 and 98,660.47

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Solution

The fourth proportional to 231,780.43, 347,816.90 and 98,660.47 is: 148,052.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,780.43 : 347,816.90 = 98,660.47 : x
  2. Step 2: Convert to fraction form
    231,780.43/347,816.90 = 98,660.47/x
  3. Step 3: Cross multiply
    231,780.43x = 347,816.90 × 98,660.47
  4. Step 4: Simplify right side
    231,780.43x = 34,315,778,827.94
  5. Step 5: Solve for x
    x = 34,315,778,827.94/231,780.43
  6. Step 6: Final answer
    x = 148,052.96

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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.