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Finding the Fourth Proportional to 378,924.57, 522,686.39 and 225,860.76

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Solution

The fourth proportional to 378,924.57, 522,686.39 and 225,860.76 is: 311,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,924.57 : 522,686.39 = 225,860.76 : x
  2. Step 2: Convert to fraction form
    378,924.57/522,686.39 = 225,860.76/x
  3. Step 3: Cross multiply
    378,924.57x = 522,686.39 × 225,860.76
  4. Step 4: Simplify right side
    378,924.57x = 118,054,344,157.75
  5. Step 5: Solve for x
    x = 118,054,344,157.75/378,924.57
  6. Step 6: Final answer
    x = 311,551.04

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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.