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Finding the Fourth Proportional to 379,256.80, 568,881.30 and 219,230.91

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Solution

The fourth proportional to 379,256.80, 568,881.30 and 219,230.91 is: 328,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,256.80 : 568,881.30 = 219,230.91 : x
  2. Step 2: Convert to fraction form
    379,256.80/568,881.30 = 219,230.91/x
  3. Step 3: Cross multiply
    379,256.80x = 568,881.30 × 219,230.91
  4. Step 4: Simplify right side
    379,256.80x = 124,716,365,080.98
  5. Step 5: Solve for x
    x = 124,716,365,080.98/379,256.80
  6. Step 6: Final answer
    x = 328,844.11

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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.