Home / 272,439.24-408,674.23-82,905.78

Finding the Fourth Proportional to 272,439.24, 408,674.23 and 82,905.78

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Solution

The fourth proportional to 272,439.24, 408,674.23 and 82,905.78 is: 124,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,439.24 : 408,674.23 = 82,905.78 : x
  2. Step 2: Convert to fraction form
    272,439.24/408,674.23 = 82,905.78/x
  3. Step 3: Cross multiply
    272,439.24x = 408,674.23 × 82,905.78
  4. Step 4: Simplify right side
    272,439.24x = 33,881,455,804.05
  5. Step 5: Solve for x
    x = 33,881,455,804.05/272,439.24
  6. Step 6: Final answer
    x = 124,363.35

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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.