Home / 261,787.84-361,257.30-159,983.56

Finding the Fourth Proportional to 261,787.84, 361,257.30 and 159,983.56

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Solution

The fourth proportional to 261,787.84, 361,257.30 and 159,983.56 is: 220,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,787.84 : 361,257.30 = 159,983.56 : x
  2. Step 2: Convert to fraction form
    261,787.84/361,257.30 = 159,983.56/x
  3. Step 3: Cross multiply
    261,787.84x = 361,257.30 × 159,983.56
  4. Step 4: Simplify right side
    261,787.84x = 57,795,228,929.99
  5. Step 5: Solve for x
    x = 57,795,228,929.99/261,787.84
  6. Step 6: Final answer
    x = 220,771.25

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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.