Home / 239,227.39-330,121.02-137,231.77

Finding the Fourth Proportional to 239,227.39, 330,121.02 and 137,231.77

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Solution

The fourth proportional to 239,227.39, 330,121.02 and 137,231.77 is: 189,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,227.39 : 330,121.02 = 137,231.77 : x
  2. Step 2: Convert to fraction form
    239,227.39/330,121.02 = 137,231.77/x
  3. Step 3: Cross multiply
    239,227.39x = 330,121.02 × 137,231.77
  4. Step 4: Simplify right side
    239,227.39x = 45,303,091,888.81
  5. Step 5: Solve for x
    x = 45,303,091,888.81/239,227.39
  6. Step 6: Final answer
    x = 189,372.51

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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.