Home / 427,499.10-641,248.13-171,447.19

Finding the Fourth Proportional to 427,499.10, 641,248.13 and 171,447.19

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Solution

The fourth proportional to 427,499.10, 641,248.13 and 171,447.19 is: 257,170.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,499.10 : 641,248.13 = 171,447.19 : x
  2. Step 2: Convert to fraction form
    427,499.10/641,248.13 = 171,447.19/x
  3. Step 3: Cross multiply
    427,499.10x = 641,248.13 × 171,447.19
  4. Step 4: Simplify right side
    427,499.10x = 109,940,188,806.75
  5. Step 5: Solve for x
    x = 109,940,188,806.75/427,499.10
  6. Step 6: Final answer
    x = 257,170.57

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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.