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Finding the Fourth Proportional to 379,981.52, 568,779.96 and 253,372.88

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Solution

The fourth proportional to 379,981.52, 568,779.96 and 253,372.88 is: 379,264.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,981.52 : 568,779.96 = 253,372.88 : x
  2. Step 2: Convert to fraction form
    379,981.52/568,779.96 = 253,372.88/x
  3. Step 3: Cross multiply
    379,981.52x = 568,779.96 × 253,372.88
  4. Step 4: Simplify right side
    379,981.52x = 144,113,416,551.49
  5. Step 5: Solve for x
    x = 144,113,416,551.49/379,981.52
  6. Step 6: Final answer
    x = 379,264.28

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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.