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Finding the Fourth Proportional to 247,353.74, 341,348.27 and 139,921.48

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Solution

The fourth proportional to 247,353.74, 341,348.27 and 139,921.48 is: 193,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,353.74 : 341,348.27 = 139,921.48 : x
  2. Step 2: Convert to fraction form
    247,353.74/341,348.27 = 139,921.48/x
  3. Step 3: Cross multiply
    247,353.74x = 341,348.27 × 139,921.48
  4. Step 4: Simplify right side
    247,353.74x = 47,761,953,580.86
  5. Step 5: Solve for x
    x = 47,761,953,580.86/247,353.74
  6. Step 6: Final answer
    x = 193,091.70

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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.