Home / 239,665.20-330,844.04-154,823.60

Finding the Fourth Proportional to 239,665.20, 330,844.04 and 154,823.60

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Solution

The fourth proportional to 239,665.20, 330,844.04 and 154,823.60 is: 213,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,665.20 : 330,844.04 = 154,823.60 : x
  2. Step 2: Convert to fraction form
    239,665.20/330,844.04 = 154,823.60/x
  3. Step 3: Cross multiply
    239,665.20x = 330,844.04 × 154,823.60
  4. Step 4: Simplify right side
    239,665.20x = 51,222,465,311.34
  5. Step 5: Solve for x
    x = 51,222,465,311.34/239,665.20
  6. Step 6: Final answer
    x = 213,725.09

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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.