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Finding the Third Proportional to 313,438.50 and 470,859.75

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Solution

The third proportional to 313,438.50 and 470,859.75 is: 707,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,438.50 : 470,859.75 = 470,859.75 : x
  2. Step 2: Convert to fraction form
    313,438.50/470,859.75 = 470,859.75/x
  3. Step 3: Cross multiply
    313,438.50x = 470,859.75 × 470,859.75
  4. Step 4: Simplify right side
    313,438.50x = 221,708,904,170.06
  5. Step 5: Solve for x
    x = 221,708,904,170.06/313,438.50
  6. Step 6: Final answer
    x = 707,344.20

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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.