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Finding the Fourth Proportional to 445,396.55, 668,096.15 and 108,437.15

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Solution

The fourth proportional to 445,396.55, 668,096.15 and 108,437.15 is: 162,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,396.55 : 668,096.15 = 108,437.15 : x
  2. Step 2: Convert to fraction form
    445,396.55/668,096.15 = 108,437.15/x
  3. Step 3: Cross multiply
    445,396.55x = 668,096.15 × 108,437.15
  4. Step 4: Simplify right side
    445,396.55x = 72,446,443,560.03
  5. Step 5: Solve for x
    x = 72,446,443,560.03/445,396.55
  6. Step 6: Final answer
    x = 162,656.05

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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.