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Finding the Fourth Proportional to 503.10, 754.88 and 242.96

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Solution

The fourth proportional to 503.10, 754.88 and 242.96 is: 364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.10 : 754.88 = 242.96 : x
  2. Step 2: Convert to fraction form
    503.10/754.88 = 242.96/x
  3. Step 3: Cross multiply
    503.10x = 754.88 × 242.96
  4. Step 4: Simplify right side
    503.10x = 183,400.66
  5. Step 5: Solve for x
    x = 183,400.66/503.10
  6. Step 6: Final answer
    x = 364.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.