Home / 231,629.40-347,444.10-91,369.80

Finding the Fourth Proportional to 231,629.40, 347,444.10 and 91,369.80

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Solution

The fourth proportional to 231,629.40, 347,444.10 and 91,369.80 is: 137,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,629.40 : 347,444.10 = 91,369.80 : x
  2. Step 2: Convert to fraction form
    231,629.40/347,444.10 = 91,369.80/x
  3. Step 3: Cross multiply
    231,629.40x = 347,444.10 × 91,369.80
  4. Step 4: Simplify right side
    231,629.40x = 31,745,897,928.18
  5. Step 5: Solve for x
    x = 31,745,897,928.18/231,629.40
  6. Step 6: Final answer
    x = 137,054.70

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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.