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Finding the Fourth Proportional to 189,156.84, 260,836.11 and 170,112.12

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Solution

The fourth proportional to 189,156.84, 260,836.11 and 170,112.12 is: 234,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,156.84 : 260,836.11 = 170,112.12 : x
  2. Step 2: Convert to fraction form
    189,156.84/260,836.11 = 170,112.12/x
  3. Step 3: Cross multiply
    189,156.84x = 260,836.11 × 170,112.12
  4. Step 4: Simplify right side
    189,156.84x = 44,371,383,644.65
  5. Step 5: Solve for x
    x = 44,371,383,644.65/189,156.84
  6. Step 6: Final answer
    x = 234,574.57

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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.