Home / 231,455.79-347,292.87-81,766.58

Finding the Fourth Proportional to 231,455.79, 347,292.87 and 81,766.58

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Solution

The fourth proportional to 231,455.79, 347,292.87 and 81,766.58 is: 122,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,455.79 : 347,292.87 = 81,766.58 : x
  2. Step 2: Convert to fraction form
    231,455.79/347,292.87 = 81,766.58/x
  3. Step 3: Cross multiply
    231,455.79x = 347,292.87 × 81,766.58
  4. Step 4: Simplify right side
    231,455.79x = 28,396,948,683.58
  5. Step 5: Solve for x
    x = 28,396,948,683.58/231,455.79
  6. Step 6: Final answer
    x = 122,688.43

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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.