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Finding the Third Proportional to 370.69 and 555.19

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Solution

The third proportional to 370.69 and 555.19 is: 831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.69 : 555.19 = 555.19 : x
  2. Step 2: Convert to fraction form
    370.69/555.19 = 555.19/x
  3. Step 3: Cross multiply
    370.69x = 555.19 × 555.19
  4. Step 4: Simplify right side
    370.69x = 308,233.16
  5. Step 5: Solve for x
    x = 308,233.16/370.69
  6. Step 6: Final answer
    x = 831.52

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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.