Home / 278,880.24-418,370.58-101,636.04

Finding the Fourth Proportional to 278,880.24, 418,370.58 and 101,636.04

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Solution

The fourth proportional to 278,880.24, 418,370.58 and 101,636.04 is: 152,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,880.24 : 418,370.58 = 101,636.04 : x
  2. Step 2: Convert to fraction form
    278,880.24/418,370.58 = 101,636.04/x
  3. Step 3: Cross multiply
    278,880.24x = 418,370.58 × 101,636.04
  4. Step 4: Simplify right side
    278,880.24x = 42,521,529,003.70
  5. Step 5: Solve for x
    x = 42,521,529,003.70/278,880.24
  6. Step 6: Final answer
    x = 152,472.36

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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.