Home / 220,529.37-330,704.97-85,522.35

Finding the Fourth Proportional to 220,529.37, 330,704.97 and 85,522.35

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Solution

The fourth proportional to 220,529.37, 330,704.97 and 85,522.35 is: 128,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,529.37 : 330,704.97 = 85,522.35 : x
  2. Step 2: Convert to fraction form
    220,529.37/330,704.97 = 85,522.35/x
  3. Step 3: Cross multiply
    220,529.37x = 330,704.97 × 85,522.35
  4. Step 4: Simplify right side
    220,529.37x = 28,282,666,191.08
  5. Step 5: Solve for x
    x = 28,282,666,191.08/220,529.37
  6. Step 6: Final answer
    x = 128,248.98

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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.