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Finding the Fourth Proportional to 503.56, 754.83 and 286.69

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Solution

The fourth proportional to 503.56, 754.83 and 286.69 is: 429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.56 : 754.83 = 286.69 : x
  2. Step 2: Convert to fraction form
    503.56/754.83 = 286.69/x
  3. Step 3: Cross multiply
    503.56x = 754.83 × 286.69
  4. Step 4: Simplify right side
    503.56x = 216,402.21
  5. Step 5: Solve for x
    x = 216,402.21/503.56
  6. Step 6: Final answer
    x = 429.74

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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.