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Finding the Fourth Proportional to 186,523.70, 279,520.70 and 143,667.09

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Solution

The fourth proportional to 186,523.70, 279,520.70 and 143,667.09 is: 215,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,523.70 : 279,520.70 = 143,667.09 : x
  2. Step 2: Convert to fraction form
    186,523.70/279,520.70 = 143,667.09/x
  3. Step 3: Cross multiply
    186,523.70x = 279,520.70 × 143,667.09
  4. Step 4: Simplify right side
    186,523.70x = 40,157,924,845.43
  5. Step 5: Solve for x
    x = 40,157,924,845.43/186,523.70
  6. Step 6: Final answer
    x = 215,296.64

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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.