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Finding the Third Proportional to 86,415.50 and 179,728.75

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Solution

The third proportional to 86,415.50 and 179,728.75 is: 373,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,415.50 : 179,728.75 = 179,728.75 : x
  2. Step 2: Convert to fraction form
    86,415.50/179,728.75 = 179,728.75/x
  3. Step 3: Cross multiply
    86,415.50x = 179,728.75 × 179,728.75
  4. Step 4: Simplify right side
    86,415.50x = 32,302,423,576.56
  5. Step 5: Solve for x
    x = 32,302,423,576.56/86,415.50
  6. Step 6: Final answer
    x = 373,803.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.