Home / 438,565.56-605,235-268,766.88

Finding the Fourth Proportional to 438,565.56, 605,235 and 268,766.88

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Solution

The fourth proportional to 438,565.56, 605,235 and 268,766.88 is: 370,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,565.56 : 605,235 = 268,766.88 : x
  2. Step 2: Convert to fraction form
    438,565.56/605,235 = 268,766.88/x
  3. Step 3: Cross multiply
    438,565.56x = 605,235 × 268,766.88
  4. Step 4: Simplify right side
    438,565.56x = 162,667,122,616.80
  5. Step 5: Solve for x
    x = 162,667,122,616.80/438,565.56
  6. Step 6: Final answer
    x = 370,907.20

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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.