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Finding the Fourth Proportional to 294.84, 439.83 and 284.31

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Solution

The fourth proportional to 294.84, 439.83 and 284.31 is: 424.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.84 : 439.83 = 284.31 : x
  2. Step 2: Convert to fraction form
    294.84/439.83 = 284.31/x
  3. Step 3: Cross multiply
    294.84x = 439.83 × 284.31
  4. Step 4: Simplify right side
    294.84x = 125,048.07
  5. Step 5: Solve for x
    x = 125,048.07/294.84
  6. Step 6: Final answer
    x = 424.12

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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.