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Finding the Fourth Proportional to 215,657.60, 323,500.80 and 73,500.80

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Solution

The fourth proportional to 215,657.60, 323,500.80 and 73,500.80 is: 110,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,657.60 : 323,500.80 = 73,500.80 : x
  2. Step 2: Convert to fraction form
    215,657.60/323,500.80 = 73,500.80/x
  3. Step 3: Cross multiply
    215,657.60x = 323,500.80 × 73,500.80
  4. Step 4: Simplify right side
    215,657.60x = 23,777,567,600.64
  5. Step 5: Solve for x
    x = 23,777,567,600.64/215,657.60
  6. Step 6: Final answer
    x = 110,256.11

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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.