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Finding the Fourth Proportional to 251,969.10, 377,945.55 and 83,497.20

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Solution

The fourth proportional to 251,969.10, 377,945.55 and 83,497.20 is: 125,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,969.10 : 377,945.55 = 83,497.20 : x
  2. Step 2: Convert to fraction form
    251,969.10/377,945.55 = 83,497.20/x
  3. Step 3: Cross multiply
    251,969.10x = 377,945.55 × 83,497.20
  4. Step 4: Simplify right side
    251,969.10x = 31,557,395,177.46
  5. Step 5: Solve for x
    x = 31,557,395,177.46/251,969.10
  6. Step 6: Final answer
    x = 125,243.12

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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.