Home / 215,818.20-323,727.30-171,203.40

Finding the Fourth Proportional to 215,818.20, 323,727.30 and 171,203.40

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Solution

The fourth proportional to 215,818.20, 323,727.30 and 171,203.40 is: 256,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,818.20 : 323,727.30 = 171,203.40 : x
  2. Step 2: Convert to fraction form
    215,818.20/323,727.30 = 171,203.40/x
  3. Step 3: Cross multiply
    215,818.20x = 323,727.30 × 171,203.40
  4. Step 4: Simplify right side
    215,818.20x = 55,423,214,432.82
  5. Step 5: Solve for x
    x = 55,423,214,432.82/215,818.20
  6. Step 6: Final answer
    x = 256,805.10

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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.