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Finding the Fourth Proportional to 307,625.23, 424,471.96 and 205,486.86

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Solution

The fourth proportional to 307,625.23, 424,471.96 and 205,486.86 is: 283,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,625.23 : 424,471.96 = 205,486.86 : x
  2. Step 2: Convert to fraction form
    307,625.23/424,471.96 = 205,486.86/x
  3. Step 3: Cross multiply
    307,625.23x = 424,471.96 × 205,486.86
  4. Step 4: Simplify right side
    307,625.23x = 87,223,410,218.45
  5. Step 5: Solve for x
    x = 87,223,410,218.45/307,625.23
  6. Step 6: Final answer
    x = 283,537.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.