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Finding the Fourth Proportional to 239,679.39, 330,698.52 and 146,521.56

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Solution

The fourth proportional to 239,679.39, 330,698.52 and 146,521.56 is: 202,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,679.39 : 330,698.52 = 146,521.56 : x
  2. Step 2: Convert to fraction form
    239,679.39/330,698.52 = 146,521.56/x
  3. Step 3: Cross multiply
    239,679.39x = 330,698.52 × 146,521.56
  4. Step 4: Simplify right side
    239,679.39x = 48,454,463,040.09
  5. Step 5: Solve for x
    x = 48,454,463,040.09/239,679.39
  6. Step 6: Final answer
    x = 202,163.66

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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.