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Finding the Fourth Proportional to 422,600.11, 633,900.17 and 256,038.19

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Solution

The fourth proportional to 422,600.11, 633,900.17 and 256,038.19 is: 384,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,600.11 : 633,900.17 = 256,038.19 : x
  2. Step 2: Convert to fraction form
    422,600.11/633,900.17 = 256,038.19/x
  3. Step 3: Cross multiply
    422,600.11x = 633,900.17 × 256,038.19
  4. Step 4: Simplify right side
    422,600.11x = 162,302,651,222.84
  5. Step 5: Solve for x
    x = 162,302,651,222.84/422,600.11
  6. Step 6: Final answer
    x = 384,057.29

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1.5x scale

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.