Home / 221,006.20-331,509.30-137,025.40

Finding the Fourth Proportional to 221,006.20, 331,509.30 and 137,025.40

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Solution

The fourth proportional to 221,006.20, 331,509.30 and 137,025.40 is: 205,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,006.20 : 331,509.30 = 137,025.40 : x
  2. Step 2: Convert to fraction form
    221,006.20/331,509.30 = 137,025.40/x
  3. Step 3: Cross multiply
    221,006.20x = 331,509.30 × 137,025.40
  4. Step 4: Simplify right side
    221,006.20x = 45,425,194,436.22
  5. Step 5: Solve for x
    x = 45,425,194,436.22/221,006.20
  6. Step 6: Final answer
    x = 205,538.10

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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.