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Finding the Third Proportional to 189,370.50 and 407,352

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Solution

The third proportional to 189,370.50 and 407,352 is: 876,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,370.50 : 407,352 = 407,352 : x
  2. Step 2: Convert to fraction form
    189,370.50/407,352 = 407,352/x
  3. Step 3: Cross multiply
    189,370.50x = 407,352 × 407,352
  4. Step 4: Simplify right side
    189,370.50x = 165,935,651,904
  5. Step 5: Solve for x
    x = 165,935,651,904/189,370.50
  6. Step 6: Final answer
    x = 876,248.69

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.