Home / 312,738.10-469,239.99-154,969.54

Finding the Fourth Proportional to 312,738.10, 469,239.99 and 154,969.54

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Solution

The fourth proportional to 312,738.10, 469,239.99 and 154,969.54 is: 232,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,738.10 : 469,239.99 = 154,969.54 : x
  2. Step 2: Convert to fraction form
    312,738.10/469,239.99 = 154,969.54/x
  3. Step 3: Cross multiply
    312,738.10x = 469,239.99 × 154,969.54
  4. Step 4: Simplify right side
    312,738.10x = 72,717,905,399.90
  5. Step 5: Solve for x
    x = 72,717,905,399.90/312,738.10
  6. Step 6: Final answer
    x = 232,520.14

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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.