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Finding the Fourth Proportional to 418,018.46, 576,866.59 and 245,942.91

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Solution

The fourth proportional to 418,018.46, 576,866.59 and 245,942.91 is: 339,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,018.46 : 576,866.59 = 245,942.91 : x
  2. Step 2: Convert to fraction form
    418,018.46/576,866.59 = 245,942.91/x
  3. Step 3: Cross multiply
    418,018.46x = 576,866.59 × 245,942.91
  4. Step 4: Simplify right side
    418,018.46x = 141,876,247,211.52
  5. Step 5: Solve for x
    x = 141,876,247,211.52/418,018.46
  6. Step 6: Final answer
    x = 339,401.87

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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.