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Finding the Fourth Proportional to 240,108.30, 359,912.16 and 90,245.34

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Solution

The fourth proportional to 240,108.30, 359,912.16 and 90,245.34 is: 135,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,108.30 : 359,912.16 = 90,245.34 : x
  2. Step 2: Convert to fraction form
    240,108.30/359,912.16 = 90,245.34/x
  3. Step 3: Cross multiply
    240,108.30x = 359,912.16 × 90,245.34
  4. Step 4: Simplify right side
    240,108.30x = 32,480,395,249.33
  5. Step 5: Solve for x
    x = 32,480,395,249.33/240,108.30
  6. Step 6: Final answer
    x = 135,273.94

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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.