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Finding the Fourth Proportional to 304,636.14, 420,387.56 and 168,675.82

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Solution

The fourth proportional to 304,636.14, 420,387.56 and 168,675.82 is: 232,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,636.14 : 420,387.56 = 168,675.82 : x
  2. Step 2: Convert to fraction form
    304,636.14/420,387.56 = 168,675.82/x
  3. Step 3: Cross multiply
    304,636.14x = 420,387.56 × 168,675.82
  4. Step 4: Simplify right side
    304,636.14x = 70,909,216,400.80
  5. Step 5: Solve for x
    x = 70,909,216,400.80/304,636.14
  6. Step 6: Final answer
    x = 232,766.92

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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.