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Finding the Fourth Proportional to 268,311.27, 401,941.03 and 155,755.47

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Solution

The fourth proportional to 268,311.27, 401,941.03 and 155,755.47 is: 233,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,311.27 : 401,941.03 = 155,755.47 : x
  2. Step 2: Convert to fraction form
    268,311.27/401,941.03 = 155,755.47/x
  3. Step 3: Cross multiply
    268,311.27x = 401,941.03 × 155,755.47
  4. Step 4: Simplify right side
    268,311.27x = 62,604,514,039.93
  5. Step 5: Solve for x
    x = 62,604,514,039.93/268,311.27
  6. Step 6: Final answer
    x = 233,327.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.