Home / 215,433.18-323,198.22-65,688.60

Finding the Fourth Proportional to 215,433.18, 323,198.22 and 65,688.60

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Solution

The fourth proportional to 215,433.18, 323,198.22 and 65,688.60 is: 98,547.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,433.18 : 323,198.22 = 65,688.60 : x
  2. Step 2: Convert to fraction form
    215,433.18/323,198.22 = 65,688.60/x
  3. Step 3: Cross multiply
    215,433.18x = 323,198.22 × 65,688.60
  4. Step 4: Simplify right side
    215,433.18x = 21,230,438,594.29
  5. Step 5: Solve for x
    x = 21,230,438,594.29/215,433.18
  6. Step 6: Final answer
    x = 98,547.67

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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.