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Finding the Third Proportional to 223,416 and 312,520.50

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Solution

The third proportional to 223,416 and 312,520.50 is: 437,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,416 : 312,520.50 = 312,520.50 : x
  2. Step 2: Convert to fraction form
    223,416/312,520.50 = 312,520.50/x
  3. Step 3: Cross multiply
    223,416x = 312,520.50 × 312,520.50
  4. Step 4: Simplify right side
    223,416x = 97,669,062,920.25
  5. Step 5: Solve for x
    x = 97,669,062,920.25/223,416
  6. Step 6: Final answer
    x = 437,162.35

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.