Home / 239,171.20-329,912.32-153,148.80

Finding the Fourth Proportional to 239,171.20, 329,912.32 and 153,148.80

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Solution

The fourth proportional to 239,171.20, 329,912.32 and 153,148.80 is: 211,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,171.20 : 329,912.32 = 153,148.80 : x
  2. Step 2: Convert to fraction form
    239,171.20/329,912.32 = 153,148.80/x
  3. Step 3: Cross multiply
    239,171.20x = 329,912.32 × 153,148.80
  4. Step 4: Simplify right side
    239,171.20x = 50,525,675,913.22
  5. Step 5: Solve for x
    x = 50,525,675,913.22/239,171.20
  6. Step 6: Final answer
    x = 211,253.18

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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.