Home / 401,589.12-602,382.72-221,665.92

Finding the Fourth Proportional to 401,589.12, 602,382.72 and 221,665.92

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Solution

The fourth proportional to 401,589.12, 602,382.72 and 221,665.92 is: 332,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,589.12 : 602,382.72 = 221,665.92 : x
  2. Step 2: Convert to fraction form
    401,589.12/602,382.72 = 221,665.92/x
  3. Step 3: Cross multiply
    401,589.12x = 602,382.72 × 221,665.92
  4. Step 4: Simplify right side
    401,589.12x = 133,527,719,820.90
  5. Step 5: Solve for x
    x = 133,527,719,820.90/401,589.12
  6. Step 6: Final answer
    x = 332,498.35

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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.