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Finding the Fourth Proportional to 304,634.82, 420,409.18 and 168,668.76

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Solution

The fourth proportional to 304,634.82, 420,409.18 and 168,668.76 is: 232,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,634.82 : 420,409.18 = 168,668.76 : x
  2. Step 2: Convert to fraction form
    304,634.82/420,409.18 = 168,668.76/x
  3. Step 3: Cross multiply
    304,634.82x = 420,409.18 × 168,668.76
  4. Step 4: Simplify right side
    304,634.82x = 70,909,895,083.22
  5. Step 5: Solve for x
    x = 70,909,895,083.22/304,634.82
  6. Step 6: Final answer
    x = 232,770.16

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1.5x scale

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.