Home / 221,041.32-331,626.66-71,278.59

Finding the Fourth Proportional to 221,041.32, 331,626.66 and 71,278.59

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Solution

The fourth proportional to 221,041.32, 331,626.66 and 71,278.59 is: 106,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,041.32 : 331,626.66 = 71,278.59 : x
  2. Step 2: Convert to fraction form
    221,041.32/331,626.66 = 71,278.59/x
  3. Step 3: Cross multiply
    221,041.32x = 331,626.66 × 71,278.59
  4. Step 4: Simplify right side
    221,041.32x = 23,637,880,731.21
  5. Step 5: Solve for x
    x = 23,637,880,731.21/221,041.32
  6. Step 6: Final answer
    x = 106,938.74

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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.