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Finding the Fourth Proportional to 247,485.40, 341,529.64 and 140,053.48

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Solution

The fourth proportional to 247,485.40, 341,529.64 and 140,053.48 is: 193,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,485.40 : 341,529.64 = 140,053.48 : x
  2. Step 2: Convert to fraction form
    247,485.40/341,529.64 = 140,053.48/x
  3. Step 3: Cross multiply
    247,485.40x = 341,529.64 × 140,053.48
  4. Step 4: Simplify right side
    247,485.40x = 47,832,414,605.15
  5. Step 5: Solve for x
    x = 47,832,414,605.15/247,485.40
  6. Step 6: Final answer
    x = 193,273.68

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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.