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Finding the Fourth Proportional to 247,044.52, 340,912.56 and 139,612.20

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Solution

The fourth proportional to 247,044.52, 340,912.56 and 139,612.20 is: 192,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,044.52 : 340,912.56 = 139,612.20 : x
  2. Step 2: Convert to fraction form
    247,044.52/340,912.56 = 139,612.20/x
  3. Step 3: Cross multiply
    247,044.52x = 340,912.56 × 139,612.20
  4. Step 4: Simplify right side
    247,044.52x = 47,595,552,509.23
  5. Step 5: Solve for x
    x = 47,595,552,509.23/247,044.52
  6. Step 6: Final answer
    x = 192,659.82

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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.