Home / 304,418.24-420,214.92-272,531.72

Finding the Fourth Proportional to 304,418.24, 420,214.92 and 272,531.72

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Solution

The fourth proportional to 304,418.24, 420,214.92 and 272,531.72 is: 376,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,418.24 : 420,214.92 = 272,531.72 : x
  2. Step 2: Convert to fraction form
    304,418.24/420,214.92 = 272,531.72/x
  3. Step 3: Cross multiply
    304,418.24x = 420,214.92 × 272,531.72
  4. Step 4: Simplify right side
    304,418.24x = 114,521,894,917.26
  5. Step 5: Solve for x
    x = 114,521,894,917.26/304,418.24
  6. Step 6: Final answer
    x = 376,199.19

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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.