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Finding the Fourth Proportional to 538,431.60, 807,582.60 and 222,855.60

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Solution

The fourth proportional to 538,431.60, 807,582.60 and 222,855.60 is: 334,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,431.60 : 807,582.60 = 222,855.60 : x
  2. Step 2: Convert to fraction form
    538,431.60/807,582.60 = 222,855.60/x
  3. Step 3: Cross multiply
    538,431.60x = 807,582.60 × 222,855.60
  4. Step 4: Simplify right side
    538,431.60x = 179,974,304,872.56
  5. Step 5: Solve for x
    x = 179,974,304,872.56/538,431.60
  6. Step 6: Final answer
    x = 334,256.58

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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.