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Finding the Fourth Proportional to 262,955.20, 394,141.20 and 144,711.40

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Solution

The fourth proportional to 262,955.20, 394,141.20 and 144,711.40 is: 216,906.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,955.20 : 394,141.20 = 144,711.40 : x
  2. Step 2: Convert to fraction form
    262,955.20/394,141.20 = 144,711.40/x
  3. Step 3: Cross multiply
    262,955.20x = 394,141.20 × 144,711.40
  4. Step 4: Simplify right side
    262,955.20x = 57,036,724,849.68
  5. Step 5: Solve for x
    x = 57,036,724,849.68/262,955.20
  6. Step 6: Final answer
    x = 216,906.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.