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Finding the Fourth Proportional to 247,862.57, 342,022.56 and 140,409.59

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Solution

The fourth proportional to 247,862.57, 342,022.56 and 140,409.59 is: 193,749.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,862.57 : 342,022.56 = 140,409.59 : x
  2. Step 2: Convert to fraction form
    247,862.57/342,022.56 = 140,409.59/x
  3. Step 3: Cross multiply
    247,862.57x = 342,022.56 × 140,409.59
  4. Step 4: Simplify right side
    247,862.57x = 48,023,245,710.24
  5. Step 5: Solve for x
    x = 48,023,245,710.24/247,862.57
  6. Step 6: Final answer
    x = 193,749.49

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1.5x scale

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.