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Finding the Fourth Proportional to 490,123.31, 735,230.32 and 190,626.62

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Solution

The fourth proportional to 490,123.31, 735,230.32 and 190,626.62 is: 285,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,123.31 : 735,230.32 = 190,626.62 : x
  2. Step 2: Convert to fraction form
    490,123.31/735,230.32 = 190,626.62/x
  3. Step 3: Cross multiply
    490,123.31x = 735,230.32 × 190,626.62
  4. Step 4: Simplify right side
    490,123.31x = 140,154,466,670.40
  5. Step 5: Solve for x
    x = 140,154,466,670.40/490,123.31
  6. Step 6: Final answer
    x = 285,957.56

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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.