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Finding the Third Proportional to 65,478.38 and 142,948.13

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Solution

The third proportional to 65,478.38 and 142,948.13 is: 312,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,478.38 : 142,948.13 = 142,948.13 : x
  2. Step 2: Convert to fraction form
    65,478.38/142,948.13 = 142,948.13/x
  3. Step 3: Cross multiply
    65,478.38x = 142,948.13 × 142,948.13
  4. Step 4: Simplify right side
    65,478.38x = 20,434,166,441.02
  5. Step 5: Solve for x
    x = 20,434,166,441.02/65,478.38
  6. Step 6: Final answer
    x = 312,075.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.