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Finding the Third Proportional to 145,140 and 219,900

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Solution

The third proportional to 145,140 and 219,900 is: 333,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,140 : 219,900 = 219,900 : x
  2. Step 2: Convert to fraction form
    145,140/219,900 = 219,900/x
  3. Step 3: Cross multiply
    145,140x = 219,900 × 219,900
  4. Step 4: Simplify right side
    145,140x = 48,356,010,000
  5. Step 5: Solve for x
    x = 48,356,010,000/145,140
  6. Step 6: Final answer
    x = 333,168.04

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.