Home / 239,288.45-330,225.12-131,865.37

Finding the Fourth Proportional to 239,288.45, 330,225.12 and 131,865.37

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Solution

The fourth proportional to 239,288.45, 330,225.12 and 131,865.37 is: 181,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,288.45 : 330,225.12 = 131,865.37 : x
  2. Step 2: Convert to fraction form
    239,288.45/330,225.12 = 131,865.37/x
  3. Step 3: Cross multiply
    239,288.45x = 330,225.12 × 131,865.37
  4. Step 4: Simplify right side
    239,288.45x = 43,545,256,806.53
  5. Step 5: Solve for x
    x = 43,545,256,806.53/239,288.45
  6. Step 6: Final answer
    x = 181,978.10

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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.