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Finding the Third Proportional to 372.19 and 557.06

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Solution

The third proportional to 372.19 and 557.06 is: 833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.19 : 557.06 = 557.06 : x
  2. Step 2: Convert to fraction form
    372.19/557.06 = 557.06/x
  3. Step 3: Cross multiply
    372.19x = 557.06 × 557.06
  4. Step 4: Simplify right side
    372.19x = 310,318.63
  5. Step 5: Solve for x
    x = 310,318.63/372.19
  6. Step 6: Final answer
    x = 833.77

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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.