Home / 278,936.46-384,930.18-151,612.95

Finding the Fourth Proportional to 278,936.46, 384,930.18 and 151,612.95

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Solution

The fourth proportional to 278,936.46, 384,930.18 and 151,612.95 is: 209,224.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,936.46 : 384,930.18 = 151,612.95 : x
  2. Step 2: Convert to fraction form
    278,936.46/384,930.18 = 151,612.95/x
  3. Step 3: Cross multiply
    278,936.46x = 384,930.18 × 151,612.95
  4. Step 4: Simplify right side
    278,936.46x = 58,360,400,133.83
  5. Step 5: Solve for x
    x = 58,360,400,133.83/278,936.46
  6. Step 6: Final answer
    x = 209,224.71

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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.