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Finding the Third Proportional to 189,734.50 and 288,485.50

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Solution

The third proportional to 189,734.50 and 288,485.50 is: 438,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,734.50 : 288,485.50 = 288,485.50 : x
  2. Step 2: Convert to fraction form
    189,734.50/288,485.50 = 288,485.50/x
  3. Step 3: Cross multiply
    189,734.50x = 288,485.50 × 288,485.50
  4. Step 4: Simplify right side
    189,734.50x = 83,223,883,710.25
  5. Step 5: Solve for x
    x = 83,223,883,710.25/189,734.50
  6. Step 6: Final answer
    x = 438,633.37

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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.