Home / 217,984.08-300,846.22-122,490.78

Finding the Fourth Proportional to 217,984.08, 300,846.22 and 122,490.78

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Solution

The fourth proportional to 217,984.08, 300,846.22 and 122,490.78 is: 169,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,984.08 : 300,846.22 = 122,490.78 : x
  2. Step 2: Convert to fraction form
    217,984.08/300,846.22 = 122,490.78/x
  3. Step 3: Cross multiply
    217,984.08x = 300,846.22 × 122,490.78
  4. Step 4: Simplify right side
    217,984.08x = 36,850,888,405.71
  5. Step 5: Solve for x
    x = 36,850,888,405.71/217,984.08
  6. Step 6: Final answer
    x = 169,053.12

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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.