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Finding the Fourth Proportional to 304,650.13, 420,440.83 and 168,696.71

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Solution

The fourth proportional to 304,650.13, 420,440.83 and 168,696.71 is: 232,814.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,650.13 : 420,440.83 = 168,696.71 : x
  2. Step 2: Convert to fraction form
    304,650.13/420,440.83 = 168,696.71/x
  3. Step 3: Cross multiply
    304,650.13x = 420,440.83 × 168,696.71
  4. Step 4: Simplify right side
    304,650.13x = 70,926,985,400.03
  5. Step 5: Solve for x
    x = 70,926,985,400.03/304,650.13
  6. Step 6: Final answer
    x = 232,814.56

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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.