Home / 379,900.91-524,276.21-216,581.57

Finding the Fourth Proportional to 379,900.91, 524,276.21 and 216,581.57

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Solution

The fourth proportional to 379,900.91, 524,276.21 and 216,581.57 is: 298,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,900.91 : 524,276.21 = 216,581.57 : x
  2. Step 2: Convert to fraction form
    379,900.91/524,276.21 = 216,581.57/x
  3. Step 3: Cross multiply
    379,900.91x = 524,276.21 × 216,581.57
  4. Step 4: Simplify right side
    379,900.91x = 113,548,560,971.16
  5. Step 5: Solve for x
    x = 113,548,560,971.16/379,900.91
  6. Step 6: Final answer
    x = 298,889.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.