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Finding the Fourth Proportional to 304,439.52, 420,111.64 and 168,471.04

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Solution

The fourth proportional to 304,439.52, 420,111.64 and 168,471.04 is: 232,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,439.52 : 420,111.64 = 168,471.04 : x
  2. Step 2: Convert to fraction form
    304,439.52/420,111.64 = 168,471.04/x
  3. Step 3: Cross multiply
    304,439.52x = 420,111.64 × 168,471.04
  4. Step 4: Simplify right side
    304,439.52x = 70,776,644,906.91
  5. Step 5: Solve for x
    x = 70,776,644,906.91/304,439.52
  6. Step 6: Final answer
    x = 232,481.79

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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.