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Finding the Third Proportional to 73,039.50 and 153,459

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Solution

The third proportional to 73,039.50 and 153,459 is: 322,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,039.50 : 153,459 = 153,459 : x
  2. Step 2: Convert to fraction form
    73,039.50/153,459 = 153,459/x
  3. Step 3: Cross multiply
    73,039.50x = 153,459 × 153,459
  4. Step 4: Simplify right side
    73,039.50x = 23,549,664,681
  5. Step 5: Solve for x
    x = 23,549,664,681/73,039.50
  6. Step 6: Final answer
    x = 322,423.68

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.