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Finding the Fourth Proportional to 227,439.77, 340,598.99 and 142,990.43

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Solution

The fourth proportional to 227,439.77, 340,598.99 and 142,990.43 is: 214,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,439.77 : 340,598.99 = 142,990.43 : x
  2. Step 2: Convert to fraction form
    227,439.77/340,598.99 = 142,990.43/x
  3. Step 3: Cross multiply
    227,439.77x = 340,598.99 × 142,990.43
  4. Step 4: Simplify right side
    227,439.77x = 48,702,394,692.15
  5. Step 5: Solve for x
    x = 48,702,394,692.15/227,439.77
  6. Step 6: Final answer
    x = 214,133.16

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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.