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Finding the Fourth Proportional to 247,929.75, 342,143.06 and 147,327.75

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Solution

The fourth proportional to 247,929.75, 342,143.06 and 147,327.75 is: 203,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,929.75 : 342,143.06 = 147,327.75 : x
  2. Step 2: Convert to fraction form
    247,929.75/342,143.06 = 147,327.75/x
  3. Step 3: Cross multiply
    247,929.75x = 342,143.06 × 147,327.75
  4. Step 4: Simplify right side
    247,929.75x = 50,407,166,471.28
  5. Step 5: Solve for x
    x = 50,407,166,471.28/247,929.75
  6. Step 6: Final answer
    x = 203,312.30

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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.