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Finding the Fourth Proportional to 377,091.54, 520,388.28 and 207,336.60

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Solution

The fourth proportional to 377,091.54, 520,388.28 and 207,336.60 is: 286,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,091.54 : 520,388.28 = 207,336.60 : x
  2. Step 2: Convert to fraction form
    377,091.54/520,388.28 = 207,336.60/x
  3. Step 3: Cross multiply
    377,091.54x = 520,388.28 × 207,336.60
  4. Step 4: Simplify right side
    377,091.54x = 107,895,536,655.05
  5. Step 5: Solve for x
    x = 107,895,536,655.05/377,091.54
  6. Step 6: Final answer
    x = 286,125.58

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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.