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Finding the Third Proportional to 155,137.50 and 248,904.75

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Solution

The third proportional to 155,137.50 and 248,904.75 is: 399,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,137.50 : 248,904.75 = 248,904.75 : x
  2. Step 2: Convert to fraction form
    155,137.50/248,904.75 = 248,904.75/x
  3. Step 3: Cross multiply
    155,137.50x = 248,904.75 × 248,904.75
  4. Step 4: Simplify right side
    155,137.50x = 61,953,574,572.56
  5. Step 5: Solve for x
    x = 61,953,574,572.56/155,137.50
  6. Step 6: Final answer
    x = 399,346.22

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.