Home / 231,430.32-347,342.73-91,287.36

Finding the Fourth Proportional to 231,430.32, 347,342.73 and 91,287.36

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Solution

The fourth proportional to 231,430.32, 347,342.73 and 91,287.36 is: 137,008.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,430.32 : 347,342.73 = 91,287.36 : x
  2. Step 2: Convert to fraction form
    231,430.32/347,342.73 = 91,287.36/x
  3. Step 3: Cross multiply
    231,430.32x = 347,342.73 × 91,287.36
  4. Step 4: Simplify right side
    231,430.32x = 31,708,000,836.89
  5. Step 5: Solve for x
    x = 31,708,000,836.89/231,430.32
  6. Step 6: Final answer
    x = 137,008.84

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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.