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Finding the Fourth Proportional to 377,151.36, 520,437.96 and 222,078.12

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Solution

The fourth proportional to 377,151.36, 520,437.96 and 222,078.12 is: 306,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,151.36 : 520,437.96 = 222,078.12 : x
  2. Step 2: Convert to fraction form
    377,151.36/520,437.96 = 222,078.12/x
  3. Step 3: Cross multiply
    377,151.36x = 520,437.96 × 222,078.12
  4. Step 4: Simplify right side
    377,151.36x = 115,577,883,733.44
  5. Step 5: Solve for x
    x = 115,577,883,733.44/377,151.36
  6. Step 6: Final answer
    x = 306,449.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.