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Finding the Fourth Proportional to 368,145.63, 508,292.64 and 281,952.33

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Solution

The fourth proportional to 368,145.63, 508,292.64 and 281,952.33 is: 389,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,145.63 : 508,292.64 = 281,952.33 : x
  2. Step 2: Convert to fraction form
    368,145.63/508,292.64 = 281,952.33/x
  3. Step 3: Cross multiply
    368,145.63x = 508,292.64 × 281,952.33
  4. Step 4: Simplify right side
    368,145.63x = 143,314,294,169.85
  5. Step 5: Solve for x
    x = 143,314,294,169.85/368,145.63
  6. Step 6: Final answer
    x = 389,286.96

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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.