Home / 439,816.60-659,724.90-218,632.60

Finding the Fourth Proportional to 439,816.60, 659,724.90 and 218,632.60

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Solution

The fourth proportional to 439,816.60, 659,724.90 and 218,632.60 is: 327,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,816.60 : 659,724.90 = 218,632.60 : x
  2. Step 2: Convert to fraction form
    439,816.60/659,724.90 = 218,632.60/x
  3. Step 3: Cross multiply
    439,816.60x = 659,724.90 × 218,632.60
  4. Step 4: Simplify right side
    439,816.60x = 144,237,370,171.74
  5. Step 5: Solve for x
    x = 144,237,370,171.74/439,816.60
  6. Step 6: Final answer
    x = 327,948.90

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Similar ratio
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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.