Home / 231,454.40-347,296.80-91,217.60

Finding the Fourth Proportional to 231,454.40, 347,296.80 and 91,217.60

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Solution

The fourth proportional to 231,454.40, 347,296.80 and 91,217.60 is: 136,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,454.40 : 347,296.80 = 91,217.60 : x
  2. Step 2: Convert to fraction form
    231,454.40/347,296.80 = 91,217.60/x
  3. Step 3: Cross multiply
    231,454.40x = 347,296.80 × 91,217.60
  4. Step 4: Simplify right side
    231,454.40x = 31,679,580,583.68
  5. Step 5: Solve for x
    x = 31,679,580,583.68/231,454.40
  6. Step 6: Final answer
    x = 136,871.80

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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.