Home / 221,205.20-331,548.60-165,736.40

Finding the Fourth Proportional to 221,205.20, 331,548.60 and 165,736.40

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Solution

The fourth proportional to 221,205.20, 331,548.60 and 165,736.40 is: 248,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,205.20 : 331,548.60 = 165,736.40 : x
  2. Step 2: Convert to fraction form
    221,205.20/331,548.60 = 165,736.40/x
  3. Step 3: Cross multiply
    221,205.20x = 331,548.60 × 165,736.40
  4. Step 4: Simplify right side
    221,205.20x = 54,949,671,389.04
  5. Step 5: Solve for x
    x = 54,949,671,389.04/221,205.20
  6. Step 6: Final answer
    x = 248,410.40

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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.