Home / 576,105.18-864,199.30-221,119.20

Finding the Fourth Proportional to 576,105.18, 864,199.30 and 221,119.20

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Solution

The fourth proportional to 576,105.18, 864,199.30 and 221,119.20 is: 331,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,105.18 : 864,199.30 = 221,119.20 : x
  2. Step 2: Convert to fraction form
    576,105.18/864,199.30 = 221,119.20/x
  3. Step 3: Cross multiply
    576,105.18x = 864,199.30 × 221,119.20
  4. Step 4: Simplify right side
    576,105.18x = 191,091,059,219.63
  5. Step 5: Solve for x
    x = 191,091,059,219.63/576,105.18
  6. Step 6: Final answer
    x = 331,694.74

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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.