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Finding the Fourth Proportional to 379,079.57, 568,284.28 and 154,627.76

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Solution

The fourth proportional to 379,079.57, 568,284.28 and 154,627.76 is: 231,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,079.57 : 568,284.28 = 154,627.76 : x
  2. Step 2: Convert to fraction form
    379,079.57/568,284.28 = 154,627.76/x
  3. Step 3: Cross multiply
    379,079.57x = 568,284.28 × 154,627.76
  4. Step 4: Simplify right side
    379,079.57x = 87,872,525,259.61
  5. Step 5: Solve for x
    x = 87,872,525,259.61/379,079.57
  6. Step 6: Final answer
    x = 231,804.96

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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.