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Finding the Fourth Proportional to 313,511.97, 470,119.80 and 121,476.36

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Solution

The fourth proportional to 313,511.97, 470,119.80 and 121,476.36 is: 182,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,511.97 : 470,119.80 = 121,476.36 : x
  2. Step 2: Convert to fraction form
    313,511.97/470,119.80 = 121,476.36/x
  3. Step 3: Cross multiply
    313,511.97x = 470,119.80 × 121,476.36
  4. Step 4: Simplify right side
    313,511.97x = 57,108,442,067.93
  5. Step 5: Solve for x
    x = 57,108,442,067.93/313,511.97
  6. Step 6: Final answer
    x = 182,157.13

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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.