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Finding the Fourth Proportional to 277.53, 383.02 and 159.55

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Solution

The fourth proportional to 277.53, 383.02 and 159.55 is: 220.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.53 : 383.02 = 159.55 : x
  2. Step 2: Convert to fraction form
    277.53/383.02 = 159.55/x
  3. Step 3: Cross multiply
    277.53x = 383.02 × 159.55
  4. Step 4: Simplify right side
    277.53x = 61,108.61
  5. Step 5: Solve for x
    x = 61,108.61/277.53
  6. Step 6: Final answer
    x = 220.18

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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.