Home / 239,290.81-330,223.53-131,864.68

Finding the Fourth Proportional to 239,290.81, 330,223.53 and 131,864.68

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Solution

The fourth proportional to 239,290.81, 330,223.53 and 131,864.68 is: 181,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,290.81 : 330,223.53 = 131,864.68 : x
  2. Step 2: Convert to fraction form
    239,290.81/330,223.53 = 131,864.68/x
  3. Step 3: Cross multiply
    239,290.81x = 330,223.53 × 131,864.68
  4. Step 4: Simplify right side
    239,290.81x = 43,544,819,452.60
  5. Step 5: Solve for x
    x = 43,544,819,452.60/239,290.81
  6. Step 6: Final answer
    x = 181,974.48

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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.