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Finding the Fourth Proportional to 247,656.15, 341,749.17 and 137,267.46

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Solution

The fourth proportional to 247,656.15, 341,749.17 and 137,267.46 is: 189,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,656.15 : 341,749.17 = 137,267.46 : x
  2. Step 2: Convert to fraction form
    247,656.15/341,749.17 = 137,267.46/x
  3. Step 3: Cross multiply
    247,656.15x = 341,749.17 × 137,267.46
  4. Step 4: Simplify right side
    247,656.15x = 46,911,040,523.01
  5. Step 5: Solve for x
    x = 46,911,040,523.01/247,656.15
  6. Step 6: Final answer
    x = 189,420.05

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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.