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Finding the Fourth Proportional to 304,340.30, 456,263.10 and 126,979.46

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Solution

The fourth proportional to 304,340.30, 456,263.10 and 126,979.46 is: 190,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,340.30 : 456,263.10 = 126,979.46 : x
  2. Step 2: Convert to fraction form
    304,340.30/456,263.10 = 126,979.46/x
  3. Step 3: Cross multiply
    304,340.30x = 456,263.10 × 126,979.46
  4. Step 4: Simplify right side
    304,340.30x = 57,936,042,055.93
  5. Step 5: Solve for x
    x = 57,936,042,055.93/304,340.30
  6. Step 6: Final answer
    x = 190,365.99

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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.