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Finding the Fourth Proportional to 304,471.71, 420,162.39 and 168,511.32

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Solution

The fourth proportional to 304,471.71, 420,162.39 and 168,511.32 is: 232,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,471.71 : 420,162.39 = 168,511.32 : x
  2. Step 2: Convert to fraction form
    304,471.71/420,162.39 = 168,511.32/x
  3. Step 3: Cross multiply
    304,471.71x = 420,162.39 × 168,511.32
  4. Step 4: Simplify right side
    304,471.71x = 70,802,118,953.25
  5. Step 5: Solve for x
    x = 70,802,118,953.25/304,471.71
  6. Step 6: Final answer
    x = 232,540.88

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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.