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Finding the Fourth Proportional to 503.19, 753.98 and 451.53

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Solution

The fourth proportional to 503.19, 753.98 and 451.53 is: 676.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.19 : 753.98 = 451.53 : x
  2. Step 2: Convert to fraction form
    503.19/753.98 = 451.53/x
  3. Step 3: Cross multiply
    503.19x = 753.98 × 451.53
  4. Step 4: Simplify right side
    503.19x = 340,442.33
  5. Step 5: Solve for x
    x = 340,442.33/503.19
  6. Step 6: Final answer
    x = 676.57

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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.