Home / 250,287.21-345,405.20-137,109.96

Finding the Fourth Proportional to 250,287.21, 345,405.20 and 137,109.96

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Solution

The fourth proportional to 250,287.21, 345,405.20 and 137,109.96 is: 189,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,287.21 : 345,405.20 = 137,109.96 : x
  2. Step 2: Convert to fraction form
    250,287.21/345,405.20 = 137,109.96/x
  3. Step 3: Cross multiply
    250,287.21x = 345,405.20 × 137,109.96
  4. Step 4: Simplify right side
    250,287.21x = 47,358,492,470.24
  5. Step 5: Solve for x
    x = 47,358,492,470.24/250,287.21
  6. Step 6: Final answer
    x = 189,216.59

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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.