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Finding the Fourth Proportional to 503.50, 755.27 and 260.18

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Solution

The fourth proportional to 503.50, 755.27 and 260.18 is: 390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.50 : 755.27 = 260.18 : x
  2. Step 2: Convert to fraction form
    503.50/755.27 = 260.18/x
  3. Step 3: Cross multiply
    503.50x = 755.27 × 260.18
  4. Step 4: Simplify right side
    503.50x = 196,506.15
  5. Step 5: Solve for x
    x = 196,506.15/503.50
  6. Step 6: Final answer
    x = 390.28

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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.