Home / 251,921.02-347,645.78-137,200.92

Finding the Fourth Proportional to 251,921.02, 347,645.78 and 137,200.92

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Solution

The fourth proportional to 251,921.02, 347,645.78 and 137,200.92 is: 189,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,921.02 : 347,645.78 = 137,200.92 : x
  2. Step 2: Convert to fraction form
    251,921.02/347,645.78 = 137,200.92/x
  3. Step 3: Cross multiply
    251,921.02x = 347,645.78 × 137,200.92
  4. Step 4: Simplify right side
    251,921.02x = 47,697,320,850.12
  5. Step 5: Solve for x
    x = 47,697,320,850.12/251,921.02
  6. Step 6: Final answer
    x = 189,334.42

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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.