Home / 239,133.61-329,979.95-147,238.30

Finding the Fourth Proportional to 239,133.61, 329,979.95 and 147,238.30

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Solution

The fourth proportional to 239,133.61, 329,979.95 and 147,238.30 is: 203,173.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,133.61 : 329,979.95 = 147,238.30 : x
  2. Step 2: Convert to fraction form
    239,133.61/329,979.95 = 147,238.30/x
  3. Step 3: Cross multiply
    239,133.61x = 329,979.95 × 147,238.30
  4. Step 4: Simplify right side
    239,133.61x = 48,585,686,072.59
  5. Step 5: Solve for x
    x = 48,585,686,072.59/239,133.61
  6. Step 6: Final answer
    x = 203,173.81

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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.