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Finding the Fourth Proportional to 288,080.20, 432,120.30 and 101,110.60

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Solution

The fourth proportional to 288,080.20, 432,120.30 and 101,110.60 is: 151,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,080.20 : 432,120.30 = 101,110.60 : x
  2. Step 2: Convert to fraction form
    288,080.20/432,120.30 = 101,110.60/x
  3. Step 3: Cross multiply
    288,080.20x = 432,120.30 × 101,110.60
  4. Step 4: Simplify right side
    288,080.20x = 43,691,942,805.18
  5. Step 5: Solve for x
    x = 43,691,942,805.18/288,080.20
  6. Step 6: Final answer
    x = 151,665.90

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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.