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Finding the Fourth Proportional to 328,524.40, 492,786.60 and 222,770.80

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Solution

The fourth proportional to 328,524.40, 492,786.60 and 222,770.80 is: 334,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,524.40 : 492,786.60 = 222,770.80 : x
  2. Step 2: Convert to fraction form
    328,524.40/492,786.60 = 222,770.80/x
  3. Step 3: Cross multiply
    328,524.40x = 492,786.60 × 222,770.80
  4. Step 4: Simplify right side
    328,524.40x = 109,778,465,111.28
  5. Step 5: Solve for x
    x = 109,778,465,111.28/328,524.40
  6. Step 6: Final answer
    x = 334,156.20

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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.