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Finding the Fourth Proportional to 247,896.72, 342,101.16 and 134,719.56

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Solution

The fourth proportional to 247,896.72, 342,101.16 and 134,719.56 is: 185,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,896.72 : 342,101.16 = 134,719.56 : x
  2. Step 2: Convert to fraction form
    247,896.72/342,101.16 = 134,719.56/x
  3. Step 3: Cross multiply
    247,896.72x = 342,101.16 × 134,719.56
  4. Step 4: Simplify right side
    247,896.72x = 46,087,717,750.69
  5. Step 5: Solve for x
    x = 46,087,717,750.69/247,896.72
  6. Step 6: Final answer
    x = 185,915.00

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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.