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Finding the Third Proportional to 189,051.75 and 292,720.50

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Solution

The third proportional to 189,051.75 and 292,720.50 is: 453,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,051.75 : 292,720.50 = 292,720.50 : x
  2. Step 2: Convert to fraction form
    189,051.75/292,720.50 = 292,720.50/x
  3. Step 3: Cross multiply
    189,051.75x = 292,720.50 × 292,720.50
  4. Step 4: Simplify right side
    189,051.75x = 85,685,291,120.25
  5. Step 5: Solve for x
    x = 85,685,291,120.25/189,051.75
  6. Step 6: Final answer
    x = 453,237.23

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.