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Finding the Third Proportional to 77,391 and 169,363.50

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Solution

The third proportional to 77,391 and 169,363.50 is: 370,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391 : 169,363.50 = 169,363.50 : x
  2. Step 2: Convert to fraction form
    77,391/169,363.50 = 169,363.50/x
  3. Step 3: Cross multiply
    77,391x = 169,363.50 × 169,363.50
  4. Step 4: Simplify right side
    77,391x = 28,683,995,132.25
  5. Step 5: Solve for x
    x = 28,683,995,132.25/77,391
  6. Step 6: Final answer
    x = 370,637.35

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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.