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Finding the Fourth Proportional to 358,429.77, 494,521.74 and 203,355.41

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Solution

The fourth proportional to 358,429.77, 494,521.74 and 203,355.41 is: 280,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,429.77 : 494,521.74 = 203,355.41 : x
  2. Step 2: Convert to fraction form
    358,429.77/494,521.74 = 203,355.41/x
  3. Step 3: Cross multiply
    358,429.77x = 494,521.74 × 203,355.41
  4. Step 4: Simplify right side
    358,429.77x = 100,563,668,719.01
  5. Step 5: Solve for x
    x = 100,563,668,719.01/358,429.77
  6. Step 6: Final answer
    x = 280,567.29

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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.