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Finding the Fourth Proportional to 379,579.96, 569,369.94 and 155,046.34

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Solution

The fourth proportional to 379,579.96, 569,369.94 and 155,046.34 is: 232,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,579.96 : 569,369.94 = 155,046.34 : x
  2. Step 2: Convert to fraction form
    379,579.96/569,369.94 = 155,046.34/x
  3. Step 3: Cross multiply
    379,579.96x = 569,369.94 × 155,046.34
  4. Step 4: Simplify right side
    379,579.96x = 88,278,725,303.02
  5. Step 5: Solve for x
    x = 88,278,725,303.02/379,579.96
  6. Step 6: Final answer
    x = 232,569.51

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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.