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Finding the Fourth Proportional to 378,479.16, 567,076.05 and 228,404.07

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Solution

The fourth proportional to 378,479.16, 567,076.05 and 228,404.07 is: 342,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,479.16 : 567,076.05 = 228,404.07 : x
  2. Step 2: Convert to fraction form
    378,479.16/567,076.05 = 228,404.07/x
  3. Step 3: Cross multiply
    378,479.16x = 567,076.05 × 228,404.07
  4. Step 4: Simplify right side
    378,479.16x = 129,522,477,819.52
  5. Step 5: Solve for x
    x = 129,522,477,819.52/378,479.16
  6. Step 6: Final answer
    x = 342,218.26

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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.