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Finding the Fourth Proportional to 363,686.20, 545,529.30 and 206,222.20

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Solution

The fourth proportional to 363,686.20, 545,529.30 and 206,222.20 is: 309,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,686.20 : 545,529.30 = 206,222.20 : x
  2. Step 2: Convert to fraction form
    363,686.20/545,529.30 = 206,222.20/x
  3. Step 3: Cross multiply
    363,686.20x = 545,529.30 × 206,222.20
  4. Step 4: Simplify right side
    363,686.20x = 112,500,252,410.46
  5. Step 5: Solve for x
    x = 112,500,252,410.46/363,686.20
  6. Step 6: Final answer
    x = 309,333.30

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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.