Home / 305,422.20-459,117.45-217,286.10

Finding the Fourth Proportional to 305,422.20, 459,117.45 and 217,286.10

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Solution

The fourth proportional to 305,422.20, 459,117.45 and 217,286.10 is: 326,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,422.20 : 459,117.45 = 217,286.10 : x
  2. Step 2: Convert to fraction form
    305,422.20/459,117.45 = 217,286.10/x
  3. Step 3: Cross multiply
    305,422.20x = 459,117.45 × 217,286.10
  4. Step 4: Simplify right side
    305,422.20x = 99,759,840,152.45
  5. Step 5: Solve for x
    x = 99,759,840,152.45/305,422.20
  6. Step 6: Final answer
    x = 326,629.30

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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.