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Finding the Fourth Proportional to 245,177.92, 367,825.92 and 85,230.64

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Solution

The fourth proportional to 245,177.92, 367,825.92 and 85,230.64 is: 127,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,177.92 : 367,825.92 = 85,230.64 : x
  2. Step 2: Convert to fraction form
    245,177.92/367,825.92 = 85,230.64/x
  3. Step 3: Cross multiply
    245,177.92x = 367,825.92 × 85,230.64
  4. Step 4: Simplify right side
    245,177.92x = 31,350,038,570.19
  5. Step 5: Solve for x
    x = 31,350,038,570.19/245,177.92
  6. Step 6: Final answer
    x = 127,866.48

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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.