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Finding the Fourth Proportional to 253.04, 349.13 and 159.83

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Solution

The fourth proportional to 253.04, 349.13 and 159.83 is: 220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.04 : 349.13 = 159.83 : x
  2. Step 2: Convert to fraction form
    253.04/349.13 = 159.83/x
  3. Step 3: Cross multiply
    253.04x = 349.13 × 159.83
  4. Step 4: Simplify right side
    253.04x = 55,798.90
  5. Step 5: Solve for x
    x = 55,798.90/253.04
  6. Step 6: Final answer
    x = 220.52

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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.