Home / 278,685.13-384,585.57-157,826.44

Finding the Fourth Proportional to 278,685.13, 384,585.57 and 157,826.44

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Solution

The fourth proportional to 278,685.13, 384,585.57 and 157,826.44 is: 217,800.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,685.13 : 384,585.57 = 157,826.44 : x
  2. Step 2: Convert to fraction form
    278,685.13/384,585.57 = 157,826.44/x
  3. Step 3: Cross multiply
    278,685.13x = 384,585.57 × 157,826.44
  4. Step 4: Simplify right side
    278,685.13x = 60,697,771,388.47
  5. Step 5: Solve for x
    x = 60,697,771,388.47/278,685.13
  6. Step 6: Final answer
    x = 217,800.54

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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.