Home / 278,272.11-384,015.63-157,410.82

Finding the Fourth Proportional to 278,272.11, 384,015.63 and 157,410.82

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Solution

The fourth proportional to 278,272.11, 384,015.63 and 157,410.82 is: 217,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,272.11 : 384,015.63 = 157,410.82 : x
  2. Step 2: Convert to fraction form
    278,272.11/384,015.63 = 157,410.82/x
  3. Step 3: Cross multiply
    278,272.11x = 384,015.63 × 157,410.82
  4. Step 4: Simplify right side
    278,272.11x = 60,448,215,201.38
  5. Step 5: Solve for x
    x = 60,448,215,201.38/278,272.11
  6. Step 6: Final answer
    x = 217,227.00

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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.