Home / 207,778.10-311,683.35-89,453.30

Finding the Fourth Proportional to 207,778.10, 311,683.35 and 89,453.30

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Solution

The fourth proportional to 207,778.10, 311,683.35 and 89,453.30 is: 134,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,778.10 : 311,683.35 = 89,453.30 : x
  2. Step 2: Convert to fraction form
    207,778.10/311,683.35 = 89,453.30/x
  3. Step 3: Cross multiply
    207,778.10x = 311,683.35 × 89,453.30
  4. Step 4: Simplify right side
    207,778.10x = 27,881,104,212.56
  5. Step 5: Solve for x
    x = 27,881,104,212.56/207,778.10
  6. Step 6: Final answer
    x = 134,186.92

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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.