Home / 221,004.20-331,506.30-137,023.40

Finding the Fourth Proportional to 221,004.20, 331,506.30 and 137,023.40

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Solution

The fourth proportional to 221,004.20, 331,506.30 and 137,023.40 is: 205,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,004.20 : 331,506.30 = 137,023.40 : x
  2. Step 2: Convert to fraction form
    221,004.20/331,506.30 = 137,023.40/x
  3. Step 3: Cross multiply
    221,004.20x = 331,506.30 × 137,023.40
  4. Step 4: Simplify right side
    221,004.20x = 45,424,120,347.42
  5. Step 5: Solve for x
    x = 45,424,120,347.42/221,004.20
  6. Step 6: Final answer
    x = 205,535.10

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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.