Home / 239,349.42-330,209.61-137,338.02

Finding the Fourth Proportional to 239,349.42, 330,209.61 and 137,338.02

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Solution

The fourth proportional to 239,349.42, 330,209.61 and 137,338.02 is: 189,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,349.42 : 330,209.61 = 137,338.02 : x
  2. Step 2: Convert to fraction form
    239,349.42/330,209.61 = 137,338.02/x
  3. Step 3: Cross multiply
    239,349.42x = 330,209.61 × 137,338.02
  4. Step 4: Simplify right side
    239,349.42x = 45,350,334,022.37
  5. Step 5: Solve for x
    x = 45,350,334,022.37/239,349.42
  6. Step 6: Final answer
    x = 189,473.34

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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.