Home / 381,256.80-571,885.20-210,014.70

Finding the Fourth Proportional to 381,256.80, 571,885.20 and 210,014.70

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Solution

The fourth proportional to 381,256.80, 571,885.20 and 210,014.70 is: 315,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,256.80 : 571,885.20 = 210,014.70 : x
  2. Step 2: Convert to fraction form
    381,256.80/571,885.20 = 210,014.70/x
  3. Step 3: Cross multiply
    381,256.80x = 571,885.20 × 210,014.70
  4. Step 4: Simplify right side
    381,256.80x = 120,104,298,712.44
  5. Step 5: Solve for x
    x = 120,104,298,712.44/381,256.80
  6. Step 6: Final answer
    x = 315,022.05

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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.