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Finding the Fourth Proportional to 379,842.11, 569,552.83 and 155,360.19

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Solution

The fourth proportional to 379,842.11, 569,552.83 and 155,360.19 is: 232,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,842.11 : 569,552.83 = 155,360.19 : x
  2. Step 2: Convert to fraction form
    379,842.11/569,552.83 = 155,360.19/x
  3. Step 3: Cross multiply
    379,842.11x = 569,552.83 × 155,360.19
  4. Step 4: Simplify right side
    379,842.11x = 88,485,835,446.93
  5. Step 5: Solve for x
    x = 88,485,835,446.93/379,842.11
  6. Step 6: Final answer
    x = 232,954.25

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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.