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Finding the Fourth Proportional to 379,882.82, 524,264.37 and 218,780.30

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Solution

The fourth proportional to 379,882.82, 524,264.37 and 218,780.30 is: 301,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,882.82 : 524,264.37 = 218,780.30 : x
  2. Step 2: Convert to fraction form
    379,882.82/524,264.37 = 218,780.30/x
  3. Step 3: Cross multiply
    379,882.82x = 524,264.37 × 218,780.30
  4. Step 4: Simplify right side
    379,882.82x = 114,698,716,147.91
  5. Step 5: Solve for x
    x = 114,698,716,147.91/379,882.82
  6. Step 6: Final answer
    x = 301,931.83

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1.5x scale

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.