Home / 220,875.16-331,351.70-80,829.40

Finding the Fourth Proportional to 220,875.16, 331,351.70 and 80,829.40

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Solution

The fourth proportional to 220,875.16, 331,351.70 and 80,829.40 is: 121,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,875.16 : 331,351.70 = 80,829.40 : x
  2. Step 2: Convert to fraction form
    220,875.16/331,351.70 = 80,829.40/x
  3. Step 3: Cross multiply
    220,875.16x = 331,351.70 × 80,829.40
  4. Step 4: Simplify right side
    220,875.16x = 26,782,959,099.98
  5. Step 5: Solve for x
    x = 26,782,959,099.98/220,875.16
  6. Step 6: Final answer
    x = 121,258.36

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1.5x scale

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.