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Finding the Fourth Proportional to 164,890.20, 247,335.30 and 145,863.30

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Solution

The fourth proportional to 164,890.20, 247,335.30 and 145,863.30 is: 218,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,890.20 : 247,335.30 = 145,863.30 : x
  2. Step 2: Convert to fraction form
    164,890.20/247,335.30 = 145,863.30/x
  3. Step 3: Cross multiply
    164,890.20x = 247,335.30 × 145,863.30
  4. Step 4: Simplify right side
    164,890.20x = 36,077,143,064.49
  5. Step 5: Solve for x
    x = 36,077,143,064.49/164,890.20
  6. Step 6: Final answer
    x = 218,794.95

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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.