Home / 305,895.20-422,061.52-178,498.08

Finding the Fourth Proportional to 305,895.20, 422,061.52 and 178,498.08

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Solution

The fourth proportional to 305,895.20, 422,061.52 and 178,498.08 is: 246,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,895.20 : 422,061.52 = 178,498.08 : x
  2. Step 2: Convert to fraction form
    305,895.20/422,061.52 = 178,498.08/x
  3. Step 3: Cross multiply
    305,895.20x = 422,061.52 × 178,498.08
  4. Step 4: Simplify right side
    305,895.20x = 75,337,170,961.88
  5. Step 5: Solve for x
    x = 75,337,170,961.88/305,895.20
  6. Step 6: Final answer
    x = 246,284.25

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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.