Home / 240,232.02-331,553.25-138,255.45

Finding the Fourth Proportional to 240,232.02, 331,553.25 and 138,255.45

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Solution

The fourth proportional to 240,232.02, 331,553.25 and 138,255.45 is: 190,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,232.02 : 331,553.25 = 138,255.45 : x
  2. Step 2: Convert to fraction form
    240,232.02/331,553.25 = 138,255.45/x
  3. Step 3: Cross multiply
    240,232.02x = 331,553.25 × 138,255.45
  4. Step 4: Simplify right side
    240,232.02x = 45,839,043,777.71
  5. Step 5: Solve for x
    x = 45,839,043,777.71/240,232.02
  6. Step 6: Final answer
    x = 190,811.55

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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.