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Finding the Fourth Proportional to 379,493.67, 569,156.64 and 109,563.15

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Solution

The fourth proportional to 379,493.67, 569,156.64 and 109,563.15 is: 164,320.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,493.67 : 569,156.64 = 109,563.15 : x
  2. Step 2: Convert to fraction form
    379,493.67/569,156.64 = 109,563.15/x
  3. Step 3: Cross multiply
    379,493.67x = 569,156.64 × 109,563.15
  4. Step 4: Simplify right side
    379,493.67x = 62,358,594,321.82
  5. Step 5: Solve for x
    x = 62,358,594,321.82/379,493.67
  6. Step 6: Final answer
    x = 164,320.51

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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.