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Finding the Fourth Proportional to 379,394.88, 569,004.72 and 168,918

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Solution

The fourth proportional to 379,394.88, 569,004.72 and 168,918 is: 253,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,394.88 : 569,004.72 = 168,918 : x
  2. Step 2: Convert to fraction form
    379,394.88/569,004.72 = 168,918/x
  3. Step 3: Cross multiply
    379,394.88x = 569,004.72 × 168,918
  4. Step 4: Simplify right side
    379,394.88x = 96,115,139,292.96
  5. Step 5: Solve for x
    x = 96,115,139,292.96/379,394.88
  6. Step 6: Final answer
    x = 253,338.00

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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.