Home / 238,474.12-329,119.59-142,989.70

Finding the Fourth Proportional to 238,474.12, 329,119.59 and 142,989.70

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Solution

The fourth proportional to 238,474.12, 329,119.59 and 142,989.70 is: 197,340.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,474.12 : 329,119.59 = 142,989.70 : x
  2. Step 2: Convert to fraction form
    238,474.12/329,119.59 = 142,989.70/x
  3. Step 3: Cross multiply
    238,474.12x = 329,119.59 × 142,989.70
  4. Step 4: Simplify right side
    238,474.12x = 47,060,711,438.22
  5. Step 5: Solve for x
    x = 47,060,711,438.22/238,474.12
  6. Step 6: Final answer
    x = 197,340.96

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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.