Home / 250,342.65-345,357.27-221,691.60

Finding the Fourth Proportional to 250,342.65, 345,357.27 and 221,691.60

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Solution

The fourth proportional to 250,342.65, 345,357.27 and 221,691.60 is: 305,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,342.65 : 345,357.27 = 221,691.60 : x
  2. Step 2: Convert to fraction form
    250,342.65/345,357.27 = 221,691.60/x
  3. Step 3: Cross multiply
    250,342.65x = 345,357.27 × 221,691.60
  4. Step 4: Simplify right side
    250,342.65x = 76,562,805,757.93
  5. Step 5: Solve for x
    x = 76,562,805,757.93/250,342.65
  6. Step 6: Final answer
    x = 305,832.05

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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.