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Finding the Third Proportional to 66,483 and 145,482

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Solution

The third proportional to 66,483 and 145,482 is: 318,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483 : 145,482 = 145,482 : x
  2. Step 2: Convert to fraction form
    66,483/145,482 = 145,482/x
  3. Step 3: Cross multiply
    66,483x = 145,482 × 145,482
  4. Step 4: Simplify right side
    66,483x = 21,165,012,324
  5. Step 5: Solve for x
    x = 21,165,012,324/66,483
  6. Step 6: Final answer
    x = 318,352.25

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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.