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Finding the Fourth Proportional to 503.10, 754.38 and 156.29

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Solution

The fourth proportional to 503.10, 754.38 and 156.29 is: 234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.10 : 754.38 = 156.29 : x
  2. Step 2: Convert to fraction form
    503.10/754.38 = 156.29/x
  3. Step 3: Cross multiply
    503.10x = 754.38 × 156.29
  4. Step 4: Simplify right side
    503.10x = 117,898.28
  5. Step 5: Solve for x
    x = 117,898.28/503.10
  6. Step 6: Final answer
    x = 234.34

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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.