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Finding the Fourth Proportional to 250,717.56, 345,984.30 and 137,539.32

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Solution

The fourth proportional to 250,717.56, 345,984.30 and 137,539.32 is: 189,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,717.56 : 345,984.30 = 137,539.32 : x
  2. Step 2: Convert to fraction form
    250,717.56/345,984.30 = 137,539.32/x
  3. Step 3: Cross multiply
    250,717.56x = 345,984.30 × 137,539.32
  4. Step 4: Simplify right side
    250,717.56x = 47,586,445,352.68
  5. Step 5: Solve for x
    x = 47,586,445,352.68/250,717.56
  6. Step 6: Final answer
    x = 189,801.01

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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.