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Finding the Fourth Proportional to 169,230.21, 253,852.34 and 139,592.85

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Solution

The fourth proportional to 169,230.21, 253,852.34 and 139,592.85 is: 209,395.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,230.21 : 253,852.34 = 139,592.85 : x
  2. Step 2: Convert to fraction form
    169,230.21/253,852.34 = 139,592.85/x
  3. Step 3: Cross multiply
    169,230.21x = 253,852.34 × 139,592.85
  4. Step 4: Simplify right side
    169,230.21x = 35,435,970,921.80
  5. Step 5: Solve for x
    x = 35,435,970,921.80/169,230.21
  6. Step 6: Final answer
    x = 209,395.07

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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.