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Finding the Fourth Proportional to 304,228.71, 456,354.46 and 90,999.40

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Solution

The fourth proportional to 304,228.71, 456,354.46 and 90,999.40 is: 136,502.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,228.71 : 456,354.46 = 90,999.40 : x
  2. Step 2: Convert to fraction form
    304,228.71/456,354.46 = 90,999.40/x
  3. Step 3: Cross multiply
    304,228.71x = 456,354.46 × 90,999.40
  4. Step 4: Simplify right side
    304,228.71x = 41,527,981,363.98
  5. Step 5: Solve for x
    x = 41,527,981,363.98/304,228.71
  6. Step 6: Final answer
    x = 136,502.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.