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Finding the Fourth Proportional to 418,002.89, 576,879.57 and 236,747.07

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Solution

The fourth proportional to 418,002.89, 576,879.57 and 236,747.07 is: 326,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,002.89 : 576,879.57 = 236,747.07 : x
  2. Step 2: Convert to fraction form
    418,002.89/576,879.57 = 236,747.07/x
  3. Step 3: Cross multiply
    418,002.89x = 576,879.57 × 236,747.07
  4. Step 4: Simplify right side
    418,002.89x = 136,574,544,889.26
  5. Step 5: Solve for x
    x = 136,574,544,889.26/418,002.89
  6. Step 6: Final answer
    x = 326,731.10

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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.