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Finding the Fourth Proportional to 247,276.54, 341,256.02 and 138,379.96

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Solution

The fourth proportional to 247,276.54, 341,256.02 and 138,379.96 is: 190,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,276.54 : 341,256.02 = 138,379.96 : x
  2. Step 2: Convert to fraction form
    247,276.54/341,256.02 = 138,379.96/x
  3. Step 3: Cross multiply
    247,276.54x = 341,256.02 × 138,379.96
  4. Step 4: Simplify right side
    247,276.54x = 47,222,992,212.46
  5. Step 5: Solve for x
    x = 47,222,992,212.46/247,276.54
  6. Step 6: Final answer
    x = 190,972.39

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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.