Home / 377,886.13-521,506.44-208,120.21

Finding the Fourth Proportional to 377,886.13, 521,506.44 and 208,120.21

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Solution

The fourth proportional to 377,886.13, 521,506.44 and 208,120.21 is: 287,218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,886.13 : 521,506.44 = 208,120.21 : x
  2. Step 2: Convert to fraction form
    377,886.13/521,506.44 = 208,120.21/x
  3. Step 3: Cross multiply
    377,886.13x = 521,506.44 × 208,120.21
  4. Step 4: Simplify right side
    377,886.13x = 108,536,029,809.15
  5. Step 5: Solve for x
    x = 108,536,029,809.15/377,886.13
  6. Step 6: Final answer
    x = 287,218.88

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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.