Home / 231,731.40-347,597.10-82,140.60

Finding the Fourth Proportional to 231,731.40, 347,597.10 and 82,140.60

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Solution

The fourth proportional to 231,731.40, 347,597.10 and 82,140.60 is: 123,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,731.40 : 347,597.10 = 82,140.60 : x
  2. Step 2: Convert to fraction form
    231,731.40/347,597.10 = 82,140.60/x
  3. Step 3: Cross multiply
    231,731.40x = 347,597.10 × 82,140.60
  4. Step 4: Simplify right side
    231,731.40x = 28,551,834,352.26
  5. Step 5: Solve for x
    x = 28,551,834,352.26/231,731.40
  6. Step 6: Final answer
    x = 123,210.90

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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.