Home / 327,848.15-491,480.47-128,123.11

Finding the Fourth Proportional to 327,848.15, 491,480.47 and 128,123.11

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Solution

The fourth proportional to 327,848.15, 491,480.47 and 128,123.11 is: 192,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,848.15 : 491,480.47 = 128,123.11 : x
  2. Step 2: Convert to fraction form
    327,848.15/491,480.47 = 128,123.11/x
  3. Step 3: Cross multiply
    327,848.15x = 491,480.47 × 128,123.11
  4. Step 4: Simplify right side
    327,848.15x = 62,970,006,320.66
  5. Step 5: Solve for x
    x = 62,970,006,320.66/327,848.15
  6. Step 6: Final answer
    x = 192,070.65

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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.