Home / 382,921.20-574,381.80-214,959.60

Finding the Fourth Proportional to 382,921.20, 574,381.80 and 214,959.60

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Solution

The fourth proportional to 382,921.20, 574,381.80 and 214,959.60 is: 322,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,921.20 : 574,381.80 = 214,959.60 : x
  2. Step 2: Convert to fraction form
    382,921.20/574,381.80 = 214,959.60/x
  3. Step 3: Cross multiply
    382,921.20x = 574,381.80 × 214,959.60
  4. Step 4: Simplify right side
    382,921.20x = 123,468,881,975.28
  5. Step 5: Solve for x
    x = 123,468,881,975.28/382,921.20
  6. Step 6: Final answer
    x = 322,439.40

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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.