Home / 304,935.14-420,819.72-168,956.36

Finding the Fourth Proportional to 304,935.14, 420,819.72 and 168,956.36

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Solution

The fourth proportional to 304,935.14, 420,819.72 and 168,956.36 is: 233,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,935.14 : 420,819.72 = 168,956.36 : x
  2. Step 2: Convert to fraction form
    304,935.14/420,819.72 = 168,956.36/x
  3. Step 3: Cross multiply
    304,935.14x = 420,819.72 × 168,956.36
  4. Step 4: Simplify right side
    304,935.14x = 71,100,169,159.47
  5. Step 5: Solve for x
    x = 71,100,169,159.47/304,935.14
  6. Step 6: Final answer
    x = 233,164.90

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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.