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Finding the Fourth Proportional to 288,700.20, 433,115.10 and 170,310.60

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Solution

The fourth proportional to 288,700.20, 433,115.10 and 170,310.60 is: 255,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,700.20 : 433,115.10 = 170,310.60 : x
  2. Step 2: Convert to fraction form
    288,700.20/433,115.10 = 170,310.60/x
  3. Step 3: Cross multiply
    288,700.20x = 433,115.10 × 170,310.60
  4. Step 4: Simplify right side
    288,700.20x = 73,764,092,550.06
  5. Step 5: Solve for x
    x = 73,764,092,550.06/288,700.20
  6. Step 6: Final answer
    x = 255,504.13

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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.