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Finding the Fourth Proportional to 304,757.82, 420,533.78 and 168,788.21

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Solution

The fourth proportional to 304,757.82, 420,533.78 and 168,788.21 is: 232,909.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,757.82 : 420,533.78 = 168,788.21 : x
  2. Step 2: Convert to fraction form
    304,757.82/420,533.78 = 168,788.21/x
  3. Step 3: Cross multiply
    304,757.82x = 420,533.78 × 168,788.21
  4. Step 4: Simplify right side
    304,757.82x = 70,981,141,024.12
  5. Step 5: Solve for x
    x = 70,981,141,024.12/304,757.82
  6. Step 6: Final answer
    x = 232,909.99

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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.