Home / 374,629.20-561,943.80-137,922.90

Finding the Fourth Proportional to 374,629.20, 561,943.80 and 137,922.90

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Solution

The fourth proportional to 374,629.20, 561,943.80 and 137,922.90 is: 206,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,629.20 : 561,943.80 = 137,922.90 : x
  2. Step 2: Convert to fraction form
    374,629.20/561,943.80 = 137,922.90/x
  3. Step 3: Cross multiply
    374,629.20x = 561,943.80 × 137,922.90
  4. Step 4: Simplify right side
    374,629.20x = 77,504,918,533.02
  5. Step 5: Solve for x
    x = 77,504,918,533.02/374,629.20
  6. Step 6: Final answer
    x = 206,884.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.