Home / 378,680.64-522,582.48-208,926.24

Finding the Fourth Proportional to 378,680.64, 522,582.48 and 208,926.24

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Solution

The fourth proportional to 378,680.64, 522,582.48 and 208,926.24 is: 288,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,680.64 : 522,582.48 = 208,926.24 : x
  2. Step 2: Convert to fraction form
    378,680.64/522,582.48 = 208,926.24/x
  3. Step 3: Cross multiply
    378,680.64x = 522,582.48 × 208,926.24
  4. Step 4: Simplify right side
    378,680.64x = 109,181,192,636.28
  5. Step 5: Solve for x
    x = 109,181,192,636.28/378,680.64
  6. Step 6: Final answer
    x = 288,319.97

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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.