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Finding the Fourth Proportional to 293,445.40, 440,168.10 and 279,667.30

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Solution

The fourth proportional to 293,445.40, 440,168.10 and 279,667.30 is: 419,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,445.40 : 440,168.10 = 279,667.30 : x
  2. Step 2: Convert to fraction form
    293,445.40/440,168.10 = 279,667.30/x
  3. Step 3: Cross multiply
    293,445.40x = 440,168.10 × 279,667.30
  4. Step 4: Simplify right side
    293,445.40x = 123,100,624,073.13
  5. Step 5: Solve for x
    x = 123,100,624,073.13/293,445.40
  6. Step 6: Final answer
    x = 419,500.95

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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.