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Finding the Fourth Proportional to 379,474.90, 569,128.53 and 109,544.37

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Solution

The fourth proportional to 379,474.90, 569,128.53 and 109,544.37 is: 164,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,474.90 : 569,128.53 = 109,544.37 : x
  2. Step 2: Convert to fraction form
    379,474.90/569,128.53 = 109,544.37/x
  3. Step 3: Cross multiply
    379,474.90x = 569,128.53 × 109,544.37
  4. Step 4: Simplify right side
    379,474.90x = 62,344,828,730.27
  5. Step 5: Solve for x
    x = 62,344,828,730.27/379,474.90
  6. Step 6: Final answer
    x = 164,292.36

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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.