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Finding the Third Proportional to 145,237.50 and 312,723

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Solution

The third proportional to 145,237.50 and 312,723 is: 673,350.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,237.50 : 312,723 = 312,723 : x
  2. Step 2: Convert to fraction form
    145,237.50/312,723 = 312,723/x
  3. Step 3: Cross multiply
    145,237.50x = 312,723 × 312,723
  4. Step 4: Simplify right side
    145,237.50x = 97,795,674,729
  5. Step 5: Solve for x
    x = 97,795,674,729/145,237.50
  6. Step 6: Final answer
    x = 673,350.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.