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Finding the Third Proportional to 130,421 and 274,851.50

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Solution

The third proportional to 130,421 and 274,851.50 is: 579,226.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,421 : 274,851.50 = 274,851.50 : x
  2. Step 2: Convert to fraction form
    130,421/274,851.50 = 274,851.50/x
  3. Step 3: Cross multiply
    130,421x = 274,851.50 × 274,851.50
  4. Step 4: Simplify right side
    130,421x = 75,543,347,052.25
  5. Step 5: Solve for x
    x = 75,543,347,052.25/130,421
  6. Step 6: Final answer
    x = 579,226.87

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.