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Finding the Fourth Proportional to 437,388.91, 603,602.78 and 243,791.26

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Solution

The fourth proportional to 437,388.91, 603,602.78 and 243,791.26 is: 336,435.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,388.91 : 603,602.78 = 243,791.26 : x
  2. Step 2: Convert to fraction form
    437,388.91/603,602.78 = 243,791.26/x
  3. Step 3: Cross multiply
    437,388.91x = 603,602.78 × 243,791.26
  4. Step 4: Simplify right side
    437,388.91x = 147,153,082,275.70
  5. Step 5: Solve for x
    x = 147,153,082,275.70/437,388.91
  6. Step 6: Final answer
    x = 336,435.33

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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.