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Finding the Third Proportional to 121,057.50 and 239,014.50

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Solution

The third proportional to 121,057.50 and 239,014.50 is: 471,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,057.50 : 239,014.50 = 239,014.50 : x
  2. Step 2: Convert to fraction form
    121,057.50/239,014.50 = 239,014.50/x
  3. Step 3: Cross multiply
    121,057.50x = 239,014.50 × 239,014.50
  4. Step 4: Simplify right side
    121,057.50x = 57,127,931,210.25
  5. Step 5: Solve for x
    x = 57,127,931,210.25/121,057.50
  6. Step 6: Final answer
    x = 471,907.41

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.