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Finding the Fourth Proportional to 379,201.64, 568,662.93 and 154,440

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Solution

The fourth proportional to 379,201.64, 568,662.93 and 154,440 is: 231,603.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,201.64 : 568,662.93 = 154,440 : x
  2. Step 2: Convert to fraction form
    379,201.64/568,662.93 = 154,440/x
  3. Step 3: Cross multiply
    379,201.64x = 568,662.93 × 154,440
  4. Step 4: Simplify right side
    379,201.64x = 87,824,302,909.20
  5. Step 5: Solve for x
    x = 87,824,302,909.20/379,201.64
  6. Step 6: Final answer
    x = 231,603.18

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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.