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Finding the Third Proportional to 77,312.25 and 164,101.50

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Solution

The third proportional to 77,312.25 and 164,101.50 is: 348,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312.25 : 164,101.50 = 164,101.50 : x
  2. Step 2: Convert to fraction form
    77,312.25/164,101.50 = 164,101.50/x
  3. Step 3: Cross multiply
    77,312.25x = 164,101.50 × 164,101.50
  4. Step 4: Simplify right side
    77,312.25x = 26,929,302,302.25
  5. Step 5: Solve for x
    x = 26,929,302,302.25/77,312.25
  6. Step 6: Final answer
    x = 348,318.70

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.