Home / 378,436.04-522,241.17-208,670.57

Finding the Fourth Proportional to 378,436.04, 522,241.17 and 208,670.57

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Solution

The fourth proportional to 378,436.04, 522,241.17 and 208,670.57 is: 287,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,436.04 : 522,241.17 = 208,670.57 : x
  2. Step 2: Convert to fraction form
    378,436.04/522,241.17 = 208,670.57/x
  3. Step 3: Cross multiply
    378,436.04x = 522,241.17 × 208,670.57
  4. Step 4: Simplify right side
    378,436.04x = 108,976,360,010.16
  5. Step 5: Solve for x
    x = 108,976,360,010.16/378,436.04
  6. Step 6: Final answer
    x = 287,965.07

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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.