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Finding the Fourth Proportional to 247,570, 341,647.20 and 134,392.72

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Solution

The fourth proportional to 247,570, 341,647.20 and 134,392.72 is: 185,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,570 : 341,647.20 = 134,392.72 : x
  2. Step 2: Convert to fraction form
    247,570/341,647.20 = 134,392.72/x
  3. Step 3: Cross multiply
    247,570x = 341,647.20 × 134,392.72
  4. Step 4: Simplify right side
    247,570x = 45,914,896,488.38
  5. Step 5: Solve for x
    x = 45,914,896,488.38/247,570
  6. Step 6: Final answer
    x = 185,462.28

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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.