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Finding the Fourth Proportional to 355,790.51, 491,151.21 and 226,901.94

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Solution

The fourth proportional to 355,790.51, 491,151.21 and 226,901.94 is: 313,226.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,790.51 : 491,151.21 = 226,901.94 : x
  2. Step 2: Convert to fraction form
    355,790.51/491,151.21 = 226,901.94/x
  3. Step 3: Cross multiply
    355,790.51x = 491,151.21 × 226,901.94
  4. Step 4: Simplify right side
    355,790.51x = 111,443,162,382.35
  5. Step 5: Solve for x
    x = 111,443,162,382.35/355,790.51
  6. Step 6: Final answer
    x = 313,226.92

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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.