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Finding the Fourth Proportional to 215,255.48, 322,895.36 and 65,500.65

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Solution

The fourth proportional to 215,255.48, 322,895.36 and 65,500.65 is: 98,254.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,255.48 : 322,895.36 = 65,500.65 : x
  2. Step 2: Convert to fraction form
    215,255.48/322,895.36 = 65,500.65/x
  3. Step 3: Cross multiply
    215,255.48x = 322,895.36 × 65,500.65
  4. Step 4: Simplify right side
    215,255.48x = 21,149,856,125.74
  5. Step 5: Solve for x
    x = 21,149,856,125.74/215,255.48
  6. Step 6: Final answer
    x = 98,254.67

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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.