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Finding the Third Proportional to 64,590.75 and 141,878.25

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Solution

The third proportional to 64,590.75 and 141,878.25 is: 311,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,590.75 : 141,878.25 = 141,878.25 : x
  2. Step 2: Convert to fraction form
    64,590.75/141,878.25 = 141,878.25/x
  3. Step 3: Cross multiply
    64,590.75x = 141,878.25 × 141,878.25
  4. Step 4: Simplify right side
    64,590.75x = 20,129,437,823.06
  5. Step 5: Solve for x
    x = 20,129,437,823.06/64,590.75
  6. Step 6: Final answer
    x = 311,645.83

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.