Home / 231,239.24-319,161.64-140,576

Finding the Fourth Proportional to 231,239.24, 319,161.64 and 140,576

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Solution

The fourth proportional to 231,239.24, 319,161.64 and 140,576 is: 194,026.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,239.24 : 319,161.64 = 140,576 : x
  2. Step 2: Convert to fraction form
    231,239.24/319,161.64 = 140,576/x
  3. Step 3: Cross multiply
    231,239.24x = 319,161.64 × 140,576
  4. Step 4: Simplify right side
    231,239.24x = 44,866,466,704.64
  5. Step 5: Solve for x
    x = 44,866,466,704.64/231,239.24
  6. Step 6: Final answer
    x = 194,026.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.