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Finding the Fourth Proportional to 630,630.75, 945,383.65 and 231,178.27

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Solution

The fourth proportional to 630,630.75, 945,383.65 and 231,178.27 is: 346,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,630.75 : 945,383.65 = 231,178.27 : x
  2. Step 2: Convert to fraction form
    630,630.75/945,383.65 = 231,178.27/x
  3. Step 3: Cross multiply
    630,630.75x = 945,383.65 × 231,178.27
  4. Step 4: Simplify right side
    630,630.75x = 218,552,156,824.85
  5. Step 5: Solve for x
    x = 218,552,156,824.85/630,630.75
  6. Step 6: Final answer
    x = 346,561.21

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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.