Home / 215,033.16-322,554.17-78,251.58

Finding the Fourth Proportional to 215,033.16, 322,554.17 and 78,251.58

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Solution

The fourth proportional to 215,033.16, 322,554.17 and 78,251.58 is: 117,378.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,033.16 : 322,554.17 = 78,251.58 : x
  2. Step 2: Convert to fraction form
    215,033.16/322,554.17 = 78,251.58/x
  3. Step 3: Cross multiply
    215,033.16x = 322,554.17 × 78,251.58
  4. Step 4: Simplify right side
    215,033.16x = 25,240,373,438.09
  5. Step 5: Solve for x
    x = 25,240,373,438.09/215,033.16
  6. Step 6: Final answer
    x = 117,378.98

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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.