Home / 231,425.49-319,260.64-159,905.73

Finding the Fourth Proportional to 231,425.49, 319,260.64 and 159,905.73

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Solution

The fourth proportional to 231,425.49, 319,260.64 and 159,905.73 is: 220,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,425.49 : 319,260.64 = 159,905.73 : x
  2. Step 2: Convert to fraction form
    231,425.49/319,260.64 = 159,905.73/x
  3. Step 3: Cross multiply
    231,425.49x = 319,260.64 × 159,905.73
  4. Step 4: Simplify right side
    231,425.49x = 51,051,605,699.47
  5. Step 5: Solve for x
    x = 51,051,605,699.47/231,425.49
  6. Step 6: Final answer
    x = 220,596.30

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1.5x scale

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.