Home / 403,264.57-556,500.87-221,972.62

Finding the Fourth Proportional to 403,264.57, 556,500.87 and 221,972.62

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Solution

The fourth proportional to 403,264.57, 556,500.87 and 221,972.62 is: 306,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,264.57 : 556,500.87 = 221,972.62 : x
  2. Step 2: Convert to fraction form
    403,264.57/556,500.87 = 221,972.62/x
  3. Step 3: Cross multiply
    403,264.57x = 556,500.87 × 221,972.62
  4. Step 4: Simplify right side
    403,264.57x = 123,527,956,146.18
  5. Step 5: Solve for x
    x = 123,527,956,146.18/403,264.57
  6. Step 6: Final answer
    x = 306,319.88

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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.