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Finding the Third Proportional to 285.19 and 537.19

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Solution

The third proportional to 285.19 and 537.19 is: 1,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.19 : 537.19 = 537.19 : x
  2. Step 2: Convert to fraction form
    285.19/537.19 = 537.19/x
  3. Step 3: Cross multiply
    285.19x = 537.19 × 537.19
  4. Step 4: Simplify right side
    285.19x = 288,570.41
  5. Step 5: Solve for x
    x = 288,570.41/285.19
  6. Step 6: Final answer
    x = 1,011.86

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.