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Finding the Fourth Proportional to 656,628.28, 984,942.30 and 157,992.28

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Solution

The fourth proportional to 656,628.28, 984,942.30 and 157,992.28 is: 236,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,628.28 : 984,942.30 = 157,992.28 : x
  2. Step 2: Convert to fraction form
    656,628.28/984,942.30 = 157,992.28/x
  3. Step 3: Cross multiply
    656,628.28x = 984,942.30 × 157,992.28
  4. Step 4: Simplify right side
    656,628.28x = 155,613,279,645.44
  5. Step 5: Solve for x
    x = 155,613,279,645.44/656,628.28
  6. Step 6: Final answer
    x = 236,988.39

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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.