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Finding the Fourth Proportional to 542,999.20, 814,575.60 and 168,983.20

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Solution

The fourth proportional to 542,999.20, 814,575.60 and 168,983.20 is: 253,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,999.20 : 814,575.60 = 168,983.20 : x
  2. Step 2: Convert to fraction form
    542,999.20/814,575.60 = 168,983.20/x
  3. Step 3: Cross multiply
    542,999.20x = 814,575.60 × 168,983.20
  4. Step 4: Simplify right side
    542,999.20x = 137,649,591,529.92
  5. Step 5: Solve for x
    x = 137,649,591,529.92/542,999.20
  6. Step 6: Final answer
    x = 253,498.70

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1.5x scale

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.