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Finding the Third Proportional to 69,488.51 and 151,720.99

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Solution

The third proportional to 69,488.51 and 151,720.99 is: 331,267.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,488.51 : 151,720.99 = 151,720.99 : x
  2. Step 2: Convert to fraction form
    69,488.51/151,720.99 = 151,720.99/x
  3. Step 3: Cross multiply
    69,488.51x = 151,720.99 × 151,720.99
  4. Step 4: Simplify right side
    69,488.51x = 23,019,258,581.37
  5. Step 5: Solve for x
    x = 23,019,258,581.37/69,488.51
  6. Step 6: Final answer
    x = 331,267.13

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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.