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Finding the Fourth Proportional to 379,885.24, 569,957.91 and 143,295.58

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Solution

The fourth proportional to 379,885.24, 569,957.91 and 143,295.58 is: 214,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,885.24 : 569,957.91 = 143,295.58 : x
  2. Step 2: Convert to fraction form
    379,885.24/569,957.91 = 143,295.58/x
  3. Step 3: Cross multiply
    379,885.24x = 569,957.91 × 143,295.58
  4. Step 4: Simplify right side
    379,885.24x = 81,672,449,289.04
  5. Step 5: Solve for x
    x = 81,672,449,289.04/379,885.24
  6. Step 6: Final answer
    x = 214,992.43

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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.