Home / 220,511.55-330,767.33-218,956.35

Finding the Fourth Proportional to 220,511.55, 330,767.33 and 218,956.35

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Solution

The fourth proportional to 220,511.55, 330,767.33 and 218,956.35 is: 328,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.55 : 330,767.33 = 218,956.35 : x
  2. Step 2: Convert to fraction form
    220,511.55/330,767.33 = 218,956.35/x
  3. Step 3: Cross multiply
    220,511.55x = 330,767.33 × 218,956.35
  4. Step 4: Simplify right side
    220,511.55x = 72,423,606,181.26
  5. Step 5: Solve for x
    x = 72,423,606,181.26/220,511.55
  6. Step 6: Final answer
    x = 328,434.53

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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.