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Finding the Fourth Proportional to 304,530.60, 456,431.40 and 126,946.20

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Solution

The fourth proportional to 304,530.60, 456,431.40 and 126,946.20 is: 190,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,530.60 : 456,431.40 = 126,946.20 : x
  2. Step 2: Convert to fraction form
    304,530.60/456,431.40 = 126,946.20/x
  3. Step 3: Cross multiply
    304,530.60x = 456,431.40 × 126,946.20
  4. Step 4: Simplify right side
    304,530.60x = 57,942,231,790.68
  5. Step 5: Solve for x
    x = 57,942,231,790.68/304,530.60
  6. Step 6: Final answer
    x = 190,267.36

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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.