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Finding the Fourth Proportional to 418,018.91, 576,879.72 and 236,726.94

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Solution

The fourth proportional to 418,018.91, 576,879.72 and 236,726.94 is: 326,690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,018.91 : 576,879.72 = 236,726.94 : x
  2. Step 2: Convert to fraction form
    418,018.91/576,879.72 = 236,726.94/x
  3. Step 3: Cross multiply
    418,018.91x = 576,879.72 × 236,726.94
  4. Step 4: Simplify right side
    418,018.91x = 136,562,970,863.66
  5. Step 5: Solve for x
    x = 136,562,970,863.66/418,018.91
  6. Step 6: Final answer
    x = 326,690.90

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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.