Home / 278,929.11-384,920.25-151,604.70

Finding the Fourth Proportional to 278,929.11, 384,920.25 and 151,604.70

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Solution

The fourth proportional to 278,929.11, 384,920.25 and 151,604.70 is: 209,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,929.11 : 384,920.25 = 151,604.70 : x
  2. Step 2: Convert to fraction form
    278,929.11/384,920.25 = 151,604.70/x
  3. Step 3: Cross multiply
    278,929.11x = 384,920.25 × 151,604.70
  4. Step 4: Simplify right side
    278,929.11x = 58,355,719,025.18
  5. Step 5: Solve for x
    x = 58,355,719,025.18/278,929.11
  6. Step 6: Final answer
    x = 209,213.44

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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.