Home / 377,982.96-521,617.77-208,216.68

Finding the Fourth Proportional to 377,982.96, 521,617.77 and 208,216.68

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Solution

The fourth proportional to 377,982.96, 521,617.77 and 208,216.68 is: 287,339.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,982.96 : 521,617.77 = 208,216.68 : x
  2. Step 2: Convert to fraction form
    377,982.96/521,617.77 = 208,216.68/x
  3. Step 3: Cross multiply
    377,982.96x = 521,617.77 × 208,216.68
  4. Step 4: Simplify right side
    377,982.96x = 108,609,520,298.40
  5. Step 5: Solve for x
    x = 108,609,520,298.40/377,982.96
  6. Step 6: Final answer
    x = 287,339.73

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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.