Home / 250,609.72-345,857.16-137,432.50

Finding the Fourth Proportional to 250,609.72, 345,857.16 and 137,432.50

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Solution

The fourth proportional to 250,609.72, 345,857.16 and 137,432.50 is: 189,665.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,609.72 : 345,857.16 = 137,432.50 : x
  2. Step 2: Convert to fraction form
    250,609.72/345,857.16 = 137,432.50/x
  3. Step 3: Cross multiply
    250,609.72x = 345,857.16 × 137,432.50
  4. Step 4: Simplify right side
    250,609.72x = 47,532,014,141.70
  5. Step 5: Solve for x
    x = 47,532,014,141.70/250,609.72
  6. Step 6: Final answer
    x = 189,665.49

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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.