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Finding the Fourth Proportional to 379,214.52, 568,915.36 and 112,974

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Solution

The fourth proportional to 379,214.52, 568,915.36 and 112,974 is: 169,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,214.52 : 568,915.36 = 112,974 : x
  2. Step 2: Convert to fraction form
    379,214.52/568,915.36 = 112,974/x
  3. Step 3: Cross multiply
    379,214.52x = 568,915.36 × 112,974
  4. Step 4: Simplify right side
    379,214.52x = 64,272,643,880.64
  5. Step 5: Solve for x
    x = 64,272,643,880.64/379,214.52
  6. Step 6: Final answer
    x = 169,488.88

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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.