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Finding the Fourth Proportional to 450,200.70, 621,330.55 and 259,251.30

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Solution

The fourth proportional to 450,200.70, 621,330.55 and 259,251.30 is: 357,797.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,200.70 : 621,330.55 = 259,251.30 : x
  2. Step 2: Convert to fraction form
    450,200.70/621,330.55 = 259,251.30/x
  3. Step 3: Cross multiply
    450,200.70x = 621,330.55 × 259,251.30
  4. Step 4: Simplify right side
    450,200.70x = 161,080,752,169.09
  5. Step 5: Solve for x
    x = 161,080,752,169.09/450,200.70
  6. Step 6: Final answer
    x = 357,797.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.