Home / 659,447.20-989,152.26-210,195.01

Finding the Fourth Proportional to 659,447.20, 989,152.26 and 210,195.01

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Solution

The fourth proportional to 659,447.20, 989,152.26 and 210,195.01 is: 315,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,447.20 : 989,152.26 = 210,195.01 : x
  2. Step 2: Convert to fraction form
    659,447.20/989,152.26 = 210,195.01/x
  3. Step 3: Cross multiply
    659,447.20x = 989,152.26 × 210,195.01
  4. Step 4: Simplify right side
    659,447.20x = 207,914,869,182.22
  5. Step 5: Solve for x
    x = 207,914,869,182.22/659,447.20
  6. Step 6: Final answer
    x = 315,286.61

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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.