Home / 377,997.47-521,636.28-208,231.60

Finding the Fourth Proportional to 377,997.47, 521,636.28 and 208,231.60

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Solution

The fourth proportional to 377,997.47, 521,636.28 and 208,231.60 is: 287,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,997.47 : 521,636.28 = 208,231.60 : x
  2. Step 2: Convert to fraction form
    377,997.47/521,636.28 = 208,231.60/x
  3. Step 3: Cross multiply
    377,997.47x = 521,636.28 × 208,231.60
  4. Step 4: Simplify right side
    377,997.47x = 108,621,155,898.36
  5. Step 5: Solve for x
    x = 108,621,155,898.36/377,997.47
  6. Step 6: Final answer
    x = 287,359.48

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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.