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Finding the Fourth Proportional to 307,813.77, 424,789.65 and 169,992.27

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Solution

The fourth proportional to 307,813.77, 424,789.65 and 169,992.27 is: 234,593.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,813.77 : 424,789.65 = 169,992.27 : x
  2. Step 2: Convert to fraction form
    307,813.77/424,789.65 = 169,992.27/x
  3. Step 3: Cross multiply
    307,813.77x = 424,789.65 × 169,992.27
  4. Step 4: Simplify right side
    307,813.77x = 72,210,956,876.01
  5. Step 5: Solve for x
    x = 72,210,956,876.01/307,813.77
  6. Step 6: Final answer
    x = 234,593.00

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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.