Home / 239,134.12-329,980.67-147,238.81

Finding the Fourth Proportional to 239,134.12, 329,980.67 and 147,238.81

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Solution

The fourth proportional to 239,134.12, 329,980.67 and 147,238.81 is: 203,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,134.12 : 329,980.67 = 147,238.81 : x
  2. Step 2: Convert to fraction form
    239,134.12/329,980.67 = 147,238.81/x
  3. Step 3: Cross multiply
    239,134.12x = 329,980.67 × 147,238.81
  4. Step 4: Simplify right side
    239,134.12x = 48,585,961,173.80
  5. Step 5: Solve for x
    x = 48,585,961,173.80/239,134.12
  6. Step 6: Final answer
    x = 203,174.52

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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.