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Finding the Fourth Proportional to 352,278, 486,143.67 and 201,378.24

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Solution

The fourth proportional to 352,278, 486,143.67 and 201,378.24 is: 277,901.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,278 : 486,143.67 = 201,378.24 : x
  2. Step 2: Convert to fraction form
    352,278/486,143.67 = 201,378.24/x
  3. Step 3: Cross multiply
    352,278x = 486,143.67 × 201,378.24
  4. Step 4: Simplify right side
    352,278x = 97,898,756,651.74
  5. Step 5: Solve for x
    x = 97,898,756,651.74/352,278
  6. Step 6: Final answer
    x = 277,901.99

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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.