Home / 215,492.70-323,257.77-65,766.72

Finding the Fourth Proportional to 215,492.70, 323,257.77 and 65,766.72

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Solution

The fourth proportional to 215,492.70, 323,257.77 and 65,766.72 is: 98,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,492.70 : 323,257.77 = 65,766.72 : x
  2. Step 2: Convert to fraction form
    215,492.70/323,257.77 = 65,766.72/x
  3. Step 3: Cross multiply
    215,492.70x = 323,257.77 × 65,766.72
  4. Step 4: Simplify right side
    215,492.70x = 21,259,603,247.41
  5. Step 5: Solve for x
    x = 21,259,603,247.41/215,492.70
  6. Step 6: Final answer
    x = 98,655.79

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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.