Home / 278,682.77-384,569.35-157,824.92

Finding the Fourth Proportional to 278,682.77, 384,569.35 and 157,824.92

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Solution

The fourth proportional to 278,682.77, 384,569.35 and 157,824.92 is: 217,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,682.77 : 384,569.35 = 157,824.92 : x
  2. Step 2: Convert to fraction form
    278,682.77/384,569.35 = 157,824.92/x
  3. Step 3: Cross multiply
    278,682.77x = 384,569.35 × 157,824.92
  4. Step 4: Simplify right side
    278,682.77x = 60,694,626,898.20
  5. Step 5: Solve for x
    x = 60,694,626,898.20/278,682.77
  6. Step 6: Final answer
    x = 217,791.10

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1.5x scale

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.