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Finding the Fourth Proportional to 156,003.40, 234,005.10 and 149,879.80

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Solution

The fourth proportional to 156,003.40, 234,005.10 and 149,879.80 is: 224,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,003.40 : 234,005.10 = 149,879.80 : x
  2. Step 2: Convert to fraction form
    156,003.40/234,005.10 = 149,879.80/x
  3. Step 3: Cross multiply
    156,003.40x = 234,005.10 × 149,879.80
  4. Step 4: Simplify right side
    156,003.40x = 35,072,637,586.98
  5. Step 5: Solve for x
    x = 35,072,637,586.98/156,003.40
  6. Step 6: Final answer
    x = 224,819.70

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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.