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Finding the Third Proportional to 145,534.50 and 318,118.50

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Solution

The third proportional to 145,534.50 and 318,118.50 is: 695,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,534.50 : 318,118.50 = 318,118.50 : x
  2. Step 2: Convert to fraction form
    145,534.50/318,118.50 = 318,118.50/x
  3. Step 3: Cross multiply
    145,534.50x = 318,118.50 × 318,118.50
  4. Step 4: Simplify right side
    145,534.50x = 101,199,380,042.25
  5. Step 5: Solve for x
    x = 101,199,380,042.25/145,534.50
  6. Step 6: Final answer
    x = 695,363.51

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.