Home / 376,935.21-520,171.74-215,791.47

Finding the Fourth Proportional to 376,935.21, 520,171.74 and 215,791.47

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Solution

The fourth proportional to 376,935.21, 520,171.74 and 215,791.47 is: 297,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,935.21 : 520,171.74 = 215,791.47 : x
  2. Step 2: Convert to fraction form
    376,935.21/520,171.74 = 215,791.47/x
  3. Step 3: Cross multiply
    376,935.21x = 520,171.74 × 215,791.47
  4. Step 4: Simplify right side
    376,935.21x = 112,248,624,427.06
  5. Step 5: Solve for x
    x = 112,248,624,427.06/376,935.21
  6. Step 6: Final answer
    x = 297,792.89

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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.