Home / 377,530.25-521,003.27-216,416.39

Finding the Fourth Proportional to 377,530.25, 521,003.27 and 216,416.39

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Solution

The fourth proportional to 377,530.25, 521,003.27 and 216,416.39 is: 298,661.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,530.25 : 521,003.27 = 216,416.39 : x
  2. Step 2: Convert to fraction form
    377,530.25/521,003.27 = 216,416.39/x
  3. Step 3: Cross multiply
    377,530.25x = 521,003.27 × 216,416.39
  4. Step 4: Simplify right side
    377,530.25x = 112,753,644,807.62
  5. Step 5: Solve for x
    x = 112,753,644,807.62/377,530.25
  6. Step 6: Final answer
    x = 298,661.22

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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.