Home / 378,674.28-522,572.26-208,908.36

Finding the Fourth Proportional to 378,674.28, 522,572.26 and 208,908.36

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Solution

The fourth proportional to 378,674.28, 522,572.26 and 208,908.36 is: 288,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,674.28 : 522,572.26 = 208,908.36 : x
  2. Step 2: Convert to fraction form
    378,674.28/522,572.26 = 208,908.36/x
  3. Step 3: Cross multiply
    378,674.28x = 522,572.26 × 208,908.36
  4. Step 4: Simplify right side
    378,674.28x = 109,169,713,818.09
  5. Step 5: Solve for x
    x = 109,169,713,818.09/378,674.28
  6. Step 6: Final answer
    x = 288,294.50

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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.