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Finding the Fourth Proportional to 288,701.20, 433,116.60 and 170,311.60

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Solution

The fourth proportional to 288,701.20, 433,116.60 and 170,311.60 is: 255,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,701.20 : 433,116.60 = 170,311.60 : x
  2. Step 2: Convert to fraction form
    288,701.20/433,116.60 = 170,311.60/x
  3. Step 3: Cross multiply
    288,701.20x = 433,116.60 × 170,311.60
  4. Step 4: Simplify right side
    288,701.20x = 73,764,781,132.56
  5. Step 5: Solve for x
    x = 73,764,781,132.56/288,701.20
  6. Step 6: Final answer
    x = 255,505.63

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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.