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Finding the Fourth Proportional to 294.12, 439.11 and 284.04

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Solution

The fourth proportional to 294.12, 439.11 and 284.04 is: 424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.12 : 439.11 = 284.04 : x
  2. Step 2: Convert to fraction form
    294.12/439.11 = 284.04/x
  3. Step 3: Cross multiply
    294.12x = 439.11 × 284.04
  4. Step 4: Simplify right side
    294.12x = 124,724.80
  5. Step 5: Solve for x
    x = 124,724.80/294.12
  6. Step 6: Final answer
    x = 424.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.