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Finding the Fourth Proportional to 247,801.28, 341,944.56 and 137,423.48

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Solution

The fourth proportional to 247,801.28, 341,944.56 and 137,423.48 is: 189,632.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,801.28 : 341,944.56 = 137,423.48 : x
  2. Step 2: Convert to fraction form
    247,801.28/341,944.56 = 137,423.48/x
  3. Step 3: Cross multiply
    247,801.28x = 341,944.56 × 137,423.48
  4. Step 4: Simplify right side
    247,801.28x = 46,991,209,692.55
  5. Step 5: Solve for x
    x = 46,991,209,692.55/247,801.28
  6. Step 6: Final answer
    x = 189,632.64

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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.