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Finding the Fourth Proportional to 304,817.34, 420,651.28 and 168,853.36

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Solution

The fourth proportional to 304,817.34, 420,651.28 and 168,853.36 is: 233,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,817.34 : 420,651.28 = 168,853.36 : x
  2. Step 2: Convert to fraction form
    304,817.34/420,651.28 = 168,853.36/x
  3. Step 3: Cross multiply
    304,817.34x = 420,651.28 × 168,853.36
  4. Step 4: Simplify right side
    304,817.34x = 71,028,382,016.30
  5. Step 5: Solve for x
    x = 71,028,382,016.30/304,817.34
  6. Step 6: Final answer
    x = 233,019.49

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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.