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Finding the Third Proportional to 372,339.70 and 558,009.42

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Solution

The third proportional to 372,339.70 and 558,009.42 is: 836,264.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,339.70 : 558,009.42 = 558,009.42 : x
  2. Step 2: Convert to fraction form
    372,339.70/558,009.42 = 558,009.42/x
  3. Step 3: Cross multiply
    372,339.70x = 558,009.42 × 558,009.42
  4. Step 4: Simplify right side
    372,339.70x = 311,374,514,901.27
  5. Step 5: Solve for x
    x = 311,374,514,901.27/372,339.70
  6. Step 6: Final answer
    x = 836,264.61

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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.