Home / 278,302.20-417,352.64-118,388.76

Finding the Fourth Proportional to 278,302.20, 417,352.64 and 118,388.76

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Solution

The fourth proportional to 278,302.20, 417,352.64 and 118,388.76 is: 177,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,302.20 : 417,352.64 = 118,388.76 : x
  2. Step 2: Convert to fraction form
    278,302.20/417,352.64 = 118,388.76/x
  3. Step 3: Cross multiply
    278,302.20x = 417,352.64 × 118,388.76
  4. Step 4: Simplify right side
    278,302.20x = 49,409,860,940.38
  5. Step 5: Solve for x
    x = 49,409,860,940.38/278,302.20
  6. Step 6: Final answer
    x = 177,540.32

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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.