Home / 378,298.04-522,054.79-208,538.24

Finding the Fourth Proportional to 378,298.04, 522,054.79 and 208,538.24

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Solution

The fourth proportional to 378,298.04, 522,054.79 and 208,538.24 is: 287,784.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,298.04 : 522,054.79 = 208,538.24 : x
  2. Step 2: Convert to fraction form
    378,298.04/522,054.79 = 208,538.24/x
  3. Step 3: Cross multiply
    378,298.04x = 522,054.79 × 208,538.24
  4. Step 4: Simplify right side
    378,298.04x = 108,868,383,958.55
  5. Step 5: Solve for x
    x = 108,868,383,958.55/378,298.04
  6. Step 6: Final answer
    x = 287,784.69

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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.