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Finding the Third Proportional to 145,532 and 318,119

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Solution

The third proportional to 145,532 and 318,119 is: 695,377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,532 : 318,119 = 318,119 : x
  2. Step 2: Convert to fraction form
    145,532/318,119 = 318,119/x
  3. Step 3: Cross multiply
    145,532x = 318,119 × 318,119
  4. Step 4: Simplify right side
    145,532x = 101,199,698,161
  5. Step 5: Solve for x
    x = 101,199,698,161/145,532
  6. Step 6: Final answer
    x = 695,377.64

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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.