Home / 377,013.36-520,278.48-215,921.82

Finding the Fourth Proportional to 377,013.36, 520,278.48 and 215,921.82

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Solution

The fourth proportional to 377,013.36, 520,278.48 and 215,921.82 is: 297,972.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,013.36 : 520,278.48 = 215,921.82 : x
  2. Step 2: Convert to fraction form
    377,013.36/520,278.48 = 215,921.82/x
  3. Step 3: Cross multiply
    377,013.36x = 520,278.48 × 215,921.82
  4. Step 4: Simplify right side
    377,013.36x = 112,339,476,308.43
  5. Step 5: Solve for x
    x = 112,339,476,308.43/377,013.36
  6. Step 6: Final answer
    x = 297,972.14

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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.