Home / 221,014.20-331,521.30-137,033.40

Finding the Fourth Proportional to 221,014.20, 331,521.30 and 137,033.40

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Solution

The fourth proportional to 221,014.20, 331,521.30 and 137,033.40 is: 205,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,014.20 : 331,521.30 = 137,033.40 : x
  2. Step 2: Convert to fraction form
    221,014.20/331,521.30 = 137,033.40/x
  3. Step 3: Cross multiply
    221,014.20x = 331,521.30 × 137,033.40
  4. Step 4: Simplify right side
    221,014.20x = 45,429,490,911.42
  5. Step 5: Solve for x
    x = 45,429,490,911.42/221,014.20
  6. Step 6: Final answer
    x = 205,550.10

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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.