Home / 215,947.20-323,920.80-195,280.05

Finding the Fourth Proportional to 215,947.20, 323,920.80 and 195,280.05

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Solution

The fourth proportional to 215,947.20, 323,920.80 and 195,280.05 is: 292,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,947.20 : 323,920.80 = 195,280.05 : x
  2. Step 2: Convert to fraction form
    215,947.20/323,920.80 = 195,280.05/x
  3. Step 3: Cross multiply
    215,947.20x = 323,920.80 × 195,280.05
  4. Step 4: Simplify right side
    215,947.20x = 63,255,270,020.04
  5. Step 5: Solve for x
    x = 63,255,270,020.04/215,947.20
  6. Step 6: Final answer
    x = 292,920.08

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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.