Home / 377,631.35-521,115.88-216,374.25

Finding the Fourth Proportional to 377,631.35, 521,115.88 and 216,374.25

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Solution

The fourth proportional to 377,631.35, 521,115.88 and 216,374.25 is: 298,587.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,631.35 : 521,115.88 = 216,374.25 : x
  2. Step 2: Convert to fraction form
    377,631.35/521,115.88 = 216,374.25/x
  3. Step 3: Cross multiply
    377,631.35x = 521,115.88 × 216,374.25
  4. Step 4: Simplify right side
    377,631.35x = 112,756,056,616.22
  5. Step 5: Solve for x
    x = 112,756,056,616.22/377,631.35
  6. Step 6: Final answer
    x = 298,587.65

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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.