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Finding the Fourth Proportional to 304,664.70, 420,441.71 and 168,698.39

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Solution

The fourth proportional to 304,664.70, 420,441.71 and 168,698.39 is: 232,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,664.70 : 420,441.71 = 168,698.39 : x
  2. Step 2: Convert to fraction form
    304,664.70/420,441.71 = 168,698.39/x
  3. Step 3: Cross multiply
    304,664.70x = 420,441.71 × 168,698.39
  4. Step 4: Simplify right side
    304,664.70x = 70,927,839,565.85
  5. Step 5: Solve for x
    x = 70,927,839,565.85/304,664.70
  6. Step 6: Final answer
    x = 232,806.23

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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.