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Finding the Third Proportional to 28,210.50 and 60,309

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Solution

The third proportional to 28,210.50 and 60,309 is: 128,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.50 : 60,309 = 60,309 : x
  2. Step 2: Convert to fraction form
    28,210.50/60,309 = 60,309/x
  3. Step 3: Cross multiply
    28,210.50x = 60,309 × 60,309
  4. Step 4: Simplify right side
    28,210.50x = 3,637,175,481
  5. Step 5: Solve for x
    x = 3,637,175,481/28,210.50
  6. Step 6: Final answer
    x = 128,929.85

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.