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Finding the Fourth Proportional to 266,099.52, 399,148.56 and 108,290.64

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Solution

The fourth proportional to 266,099.52, 399,148.56 and 108,290.64 is: 162,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,099.52 : 399,148.56 = 108,290.64 : x
  2. Step 2: Convert to fraction form
    266,099.52/399,148.56 = 108,290.64/x
  3. Step 3: Cross multiply
    266,099.52x = 399,148.56 × 108,290.64
  4. Step 4: Simplify right side
    266,099.52x = 43,224,053,017.48
  5. Step 5: Solve for x
    x = 43,224,053,017.48/266,099.52
  6. Step 6: Final answer
    x = 162,435.67

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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.