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Finding the Fourth Proportional to 505.03, 755.51 and 374.95

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Solution

The fourth proportional to 505.03, 755.51 and 374.95 is: 560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.03 : 755.51 = 374.95 : x
  2. Step 2: Convert to fraction form
    505.03/755.51 = 374.95/x
  3. Step 3: Cross multiply
    505.03x = 755.51 × 374.95
  4. Step 4: Simplify right side
    505.03x = 283,276.60
  5. Step 5: Solve for x
    x = 283,276.60/505.03
  6. Step 6: Final answer
    x = 560.91

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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.