Home / 240,214.88-331,509.30-138,255.86

Finding the Fourth Proportional to 240,214.88, 331,509.30 and 138,255.86

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Solution

The fourth proportional to 240,214.88, 331,509.30 and 138,255.86 is: 190,800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,214.88 : 331,509.30 = 138,255.86 : x
  2. Step 2: Convert to fraction form
    240,214.88/331,509.30 = 138,255.86/x
  3. Step 3: Cross multiply
    240,214.88x = 331,509.30 × 138,255.86
  4. Step 4: Simplify right side
    240,214.88x = 45,833,103,369.50
  5. Step 5: Solve for x
    x = 45,833,103,369.50/240,214.88
  6. Step 6: Final answer
    x = 190,800.43

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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.