Home / 377,314.22-520,731.82-216,190.64

Finding the Fourth Proportional to 377,314.22, 520,731.82 and 216,190.64

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Solution

The fourth proportional to 377,314.22, 520,731.82 and 216,190.64 is: 298,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,314.22 : 520,731.82 = 216,190.64 : x
  2. Step 2: Convert to fraction form
    377,314.22/520,731.82 = 216,190.64/x
  3. Step 3: Cross multiply
    377,314.22x = 520,731.82 × 216,190.64
  4. Step 4: Simplify right side
    377,314.22x = 112,577,345,434.17
  5. Step 5: Solve for x
    x = 112,577,345,434.17/377,314.22
  6. Step 6: Final answer
    x = 298,364.97

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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.