Home / 215,235.44-322,638.94-102,784.20

Finding the Fourth Proportional to 215,235.44, 322,638.94 and 102,784.20

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Solution

The fourth proportional to 215,235.44, 322,638.94 and 102,784.20 is: 154,074.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,235.44 : 322,638.94 = 102,784.20 : x
  2. Step 2: Convert to fraction form
    215,235.44/322,638.94 = 102,784.20/x
  3. Step 3: Cross multiply
    215,235.44x = 322,638.94 × 102,784.20
  4. Step 4: Simplify right side
    215,235.44x = 33,162,185,336.75
  5. Step 5: Solve for x
    x = 33,162,185,336.75/215,235.44
  6. Step 6: Final answer
    x = 154,074.00

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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.