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Finding the Fourth Proportional to 313,790, 433,030.20 and 179,679.92

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Solution

The fourth proportional to 313,790, 433,030.20 and 179,679.92 is: 247,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,790 : 433,030.20 = 179,679.92 : x
  2. Step 2: Convert to fraction form
    313,790/433,030.20 = 179,679.92/x
  3. Step 3: Cross multiply
    313,790x = 433,030.20 × 179,679.92
  4. Step 4: Simplify right side
    313,790x = 77,806,831,693.58
  5. Step 5: Solve for x
    x = 77,806,831,693.58/313,790
  6. Step 6: Final answer
    x = 247,958.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.