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Finding the Fourth Proportional to 304,411.74, 456,620.69 and 135,940.65

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Solution

The fourth proportional to 304,411.74, 456,620.69 and 135,940.65 is: 203,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,411.74 : 456,620.69 = 135,940.65 : x
  2. Step 2: Convert to fraction form
    304,411.74/456,620.69 = 135,940.65/x
  3. Step 3: Cross multiply
    304,411.74x = 456,620.69 × 135,940.65
  4. Step 4: Simplify right side
    304,411.74x = 62,073,313,402.05
  5. Step 5: Solve for x
    x = 62,073,313,402.05/304,411.74
  6. Step 6: Final answer
    x = 203,912.35

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1.5x scale

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.