Home / 279,945.77-386,321.87-152,622.41

Finding the Fourth Proportional to 279,945.77, 386,321.87 and 152,622.41

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Solution

The fourth proportional to 279,945.77, 386,321.87 and 152,622.41 is: 210,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,945.77 : 386,321.87 = 152,622.41 : x
  2. Step 2: Convert to fraction form
    279,945.77/386,321.87 = 152,622.41/x
  3. Step 3: Cross multiply
    279,945.77x = 386,321.87 × 152,622.41
  4. Step 4: Simplify right side
    279,945.77x = 58,961,373,285.05
  5. Step 5: Solve for x
    x = 58,961,373,285.05/279,945.77
  6. Step 6: Final answer
    x = 210,617.13

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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.