Home / 443,568.20-665,394.21-123,741.32

Finding the Fourth Proportional to 443,568.20, 665,394.21 and 123,741.32

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Solution

The fourth proportional to 443,568.20, 665,394.21 and 123,741.32 is: 185,623.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,568.20 : 665,394.21 = 123,741.32 : x
  2. Step 2: Convert to fraction form
    443,568.20/665,394.21 = 123,741.32/x
  3. Step 3: Cross multiply
    443,568.20x = 665,394.21 × 123,741.32
  4. Step 4: Simplify right side
    443,568.20x = 82,336,754,538.79
  5. Step 5: Solve for x
    x = 82,336,754,538.79/443,568.20
  6. Step 6: Final answer
    x = 185,623.67

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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.