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Finding the Fourth Proportional to 203,420.20, 304,838.70 and 149,692.90

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Solution

The fourth proportional to 203,420.20, 304,838.70 and 149,692.90 is: 224,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,420.20 : 304,838.70 = 149,692.90 : x
  2. Step 2: Convert to fraction form
    203,420.20/304,838.70 = 149,692.90/x
  3. Step 3: Cross multiply
    203,420.20x = 304,838.70 × 149,692.90
  4. Step 4: Simplify right side
    203,420.20x = 45,632,189,035.23
  5. Step 5: Solve for x
    x = 45,632,189,035.23/203,420.20
  6. Step 6: Final answer
    x = 224,324.77

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1.5x scale

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.