Home / 378,743.23-522,676.56-208,988.29

Finding the Fourth Proportional to 378,743.23, 522,676.56 and 208,988.29

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Solution

The fourth proportional to 378,743.23, 522,676.56 and 208,988.29 is: 288,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,743.23 : 522,676.56 = 208,988.29 : x
  2. Step 2: Convert to fraction form
    378,743.23/522,676.56 = 208,988.29/x
  3. Step 3: Cross multiply
    378,743.23x = 522,676.56 × 208,988.29
  4. Step 4: Simplify right side
    378,743.23x = 109,233,280,497.48
  5. Step 5: Solve for x
    x = 109,233,280,497.48/378,743.23
  6. Step 6: Final answer
    x = 288,409.86

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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.