Home / 250,146.31-345,199.42-135,421.92

Finding the Fourth Proportional to 250,146.31, 345,199.42 and 135,421.92

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Solution

The fourth proportional to 250,146.31, 345,199.42 and 135,421.92 is: 186,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,146.31 : 345,199.42 = 135,421.92 : x
  2. Step 2: Convert to fraction form
    250,146.31/345,199.42 = 135,421.92/x
  3. Step 3: Cross multiply
    250,146.31x = 345,199.42 × 135,421.92
  4. Step 4: Simplify right side
    250,146.31x = 46,747,567,367.98
  5. Step 5: Solve for x
    x = 46,747,567,367.98/250,146.31
  6. Step 6: Final answer
    x = 186,880.90

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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.