Home / 239,968.24-331,220.22-138,004.84

Finding the Fourth Proportional to 239,968.24, 331,220.22 and 138,004.84

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Solution

The fourth proportional to 239,968.24, 331,220.22 and 138,004.84 is: 190,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,968.24 : 331,220.22 = 138,004.84 : x
  2. Step 2: Convert to fraction form
    239,968.24/331,220.22 = 138,004.84/x
  3. Step 3: Cross multiply
    239,968.24x = 331,220.22 × 138,004.84
  4. Step 4: Simplify right side
    239,968.24x = 45,709,993,465.86
  5. Step 5: Solve for x
    x = 45,709,993,465.86/239,968.24
  6. Step 6: Final answer
    x = 190,483.51

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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.