Home / 262,623.94-393,932.49-120,428.80

Finding the Fourth Proportional to 262,623.94, 393,932.49 and 120,428.80

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Solution

The fourth proportional to 262,623.94, 393,932.49 and 120,428.80 is: 180,641.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,623.94 : 393,932.49 = 120,428.80 : x
  2. Step 2: Convert to fraction form
    262,623.94/393,932.49 = 120,428.80/x
  3. Step 3: Cross multiply
    262,623.94x = 393,932.49 × 120,428.80
  4. Step 4: Simplify right side
    262,623.94x = 47,440,817,051.71
  5. Step 5: Solve for x
    x = 47,440,817,051.71/262,623.94
  6. Step 6: Final answer
    x = 180,641.63

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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.