Home / 219,003.06-328,078.52-143,895

Finding the Fourth Proportional to 219,003.06, 328,078.52 and 143,895

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Solution

The fourth proportional to 219,003.06, 328,078.52 and 143,895 is: 215,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,003.06 : 328,078.52 = 143,895 : x
  2. Step 2: Convert to fraction form
    219,003.06/328,078.52 = 143,895/x
  3. Step 3: Cross multiply
    219,003.06x = 328,078.52 × 143,895
  4. Step 4: Simplify right side
    219,003.06x = 47,208,858,635.40
  5. Step 5: Solve for x
    x = 47,208,858,635.40/219,003.06
  6. Step 6: Final answer
    x = 215,562.55

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1.5x scale

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.