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Finding the Fourth Proportional to 417,080.20, 625,620.30 and 259,227.40

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Solution

The fourth proportional to 417,080.20, 625,620.30 and 259,227.40 is: 388,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,080.20 : 625,620.30 = 259,227.40 : x
  2. Step 2: Convert to fraction form
    417,080.20/625,620.30 = 259,227.40/x
  3. Step 3: Cross multiply
    417,080.20x = 625,620.30 × 259,227.40
  4. Step 4: Simplify right side
    417,080.20x = 162,177,923,756.22
  5. Step 5: Solve for x
    x = 162,177,923,756.22/417,080.20
  6. Step 6: Final answer
    x = 388,841.10

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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.