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Finding the Fourth Proportional to 203,435.20, 304,861.20 and 149,707.90

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Solution

The fourth proportional to 203,435.20, 304,861.20 and 149,707.90 is: 224,347.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,435.20 : 304,861.20 = 149,707.90 : x
  2. Step 2: Convert to fraction form
    203,435.20/304,861.20 = 149,707.90/x
  3. Step 3: Cross multiply
    203,435.20x = 304,861.20 × 149,707.90
  4. Step 4: Simplify right side
    203,435.20x = 45,640,130,043.48
  5. Step 5: Solve for x
    x = 45,640,130,043.48/203,435.20
  6. Step 6: Final answer
    x = 224,347.26

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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.