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Finding the Fourth Proportional to 283,883.86, 426,121.04 and 209,088.46

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Solution

The fourth proportional to 283,883.86, 426,121.04 and 209,088.46 is: 313,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,883.86 : 426,121.04 = 209,088.46 : x
  2. Step 2: Convert to fraction form
    283,883.86/426,121.04 = 209,088.46/x
  3. Step 3: Cross multiply
    283,883.86x = 426,121.04 × 209,088.46
  4. Step 4: Simplify right side
    283,883.86x = 89,096,992,027.20
  5. Step 5: Solve for x
    x = 89,096,992,027.20/283,883.86
  6. Step 6: Final answer
    x = 313,850.15

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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.