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Finding the Third Proportional to 30,466.50 and 66,819

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Solution

The third proportional to 30,466.50 and 66,819 is: 146,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,466.50 : 66,819 = 66,819 : x
  2. Step 2: Convert to fraction form
    30,466.50/66,819 = 66,819/x
  3. Step 3: Cross multiply
    30,466.50x = 66,819 × 66,819
  4. Step 4: Simplify right side
    30,466.50x = 4,464,778,761
  5. Step 5: Solve for x
    x = 4,464,778,761/30,466.50
  6. Step 6: Final answer
    x = 146,547.15

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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.