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Finding the Fourth Proportional to 394,489.92, 544,263.12 and 224,603.76

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Solution

The fourth proportional to 394,489.92, 544,263.12 and 224,603.76 is: 309,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,489.92 : 544,263.12 = 224,603.76 : x
  2. Step 2: Convert to fraction form
    394,489.92/544,263.12 = 224,603.76/x
  3. Step 3: Cross multiply
    394,489.92x = 544,263.12 × 224,603.76
  4. Step 4: Simplify right side
    394,489.92x = 122,243,543,181.33
  5. Step 5: Solve for x
    x = 122,243,543,181.33/394,489.92
  6. Step 6: Final answer
    x = 309,877.48

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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.