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Finding the Fourth Proportional to 250,087.31, 345,120.51 and 136,910.06

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Solution

The fourth proportional to 250,087.31, 345,120.51 and 136,910.06 is: 188,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,087.31 : 345,120.51 = 136,910.06 : x
  2. Step 2: Convert to fraction form
    250,087.31/345,120.51 = 136,910.06/x
  3. Step 3: Cross multiply
    250,087.31x = 345,120.51 × 136,910.06
  4. Step 4: Simplify right side
    250,087.31x = 47,250,470,594.13
  5. Step 5: Solve for x
    x = 47,250,470,594.13/250,087.31
  6. Step 6: Final answer
    x = 188,935.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.