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Finding the Third Proportional to 210,244.50 and 315,300.75

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Solution

The third proportional to 210,244.50 and 315,300.75 is: 472,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,244.50 : 315,300.75 = 315,300.75 : x
  2. Step 2: Convert to fraction form
    210,244.50/315,300.75 = 315,300.75/x
  3. Step 3: Cross multiply
    210,244.50x = 315,300.75 × 315,300.75
  4. Step 4: Simplify right side
    210,244.50x = 99,414,562,950.56
  5. Step 5: Solve for x
    x = 99,414,562,950.56/210,244.50
  6. Step 6: Final answer
    x = 472,852.15

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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.