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Finding the Fourth Proportional to 284.98, 393.30 and 180.07

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Solution

The fourth proportional to 284.98, 393.30 and 180.07 is: 248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.98 : 393.30 = 180.07 : x
  2. Step 2: Convert to fraction form
    284.98/393.30 = 180.07/x
  3. Step 3: Cross multiply
    284.98x = 393.30 × 180.07
  4. Step 4: Simplify right side
    284.98x = 70,821.53
  5. Step 5: Solve for x
    x = 70,821.53/284.98
  6. Step 6: Final answer
    x = 248.51

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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.