Home / 220,913.40-331,370.10-71,153.40

Finding the Fourth Proportional to 220,913.40, 331,370.10 and 71,153.40

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Solution

The fourth proportional to 220,913.40, 331,370.10 and 71,153.40 is: 106,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,913.40 : 331,370.10 = 71,153.40 : x
  2. Step 2: Convert to fraction form
    220,913.40/331,370.10 = 71,153.40/x
  3. Step 3: Cross multiply
    220,913.40x = 331,370.10 × 71,153.40
  4. Step 4: Simplify right side
    220,913.40x = 23,578,109,273.34
  5. Step 5: Solve for x
    x = 23,578,109,273.34/220,913.40
  6. Step 6: Final answer
    x = 106,730.10

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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.