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Finding the Fourth Proportional to 361,794.92, 542,775.06 and 125,137.40

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Solution

The fourth proportional to 361,794.92, 542,775.06 and 125,137.40 is: 187,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,794.92 : 542,775.06 = 125,137.40 : x
  2. Step 2: Convert to fraction form
    361,794.92/542,775.06 = 125,137.40/x
  3. Step 3: Cross multiply
    361,794.92x = 542,775.06 × 125,137.40
  4. Step 4: Simplify right side
    361,794.92x = 67,921,457,079.37
  5. Step 5: Solve for x
    x = 67,921,457,079.37/361,794.92
  6. Step 6: Final answer
    x = 187,734.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.