Home / 231,403.48-319,344.06-130,807.96

Finding the Fourth Proportional to 231,403.48, 319,344.06 and 130,807.96

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Solution

The fourth proportional to 231,403.48, 319,344.06 and 130,807.96 is: 180,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,403.48 : 319,344.06 = 130,807.96 : x
  2. Step 2: Convert to fraction form
    231,403.48/319,344.06 = 130,807.96/x
  3. Step 3: Cross multiply
    231,403.48x = 319,344.06 × 130,807.96
  4. Step 4: Simplify right side
    231,403.48x = 41,772,745,026.72
  5. Step 5: Solve for x
    x = 41,772,745,026.72/231,403.48
  6. Step 6: Final answer
    x = 180,519.09

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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.