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Finding the Fourth Proportional to 356,392.52, 491,427.64 and 227,126.32

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Solution

The fourth proportional to 356,392.52, 491,427.64 and 227,126.32 is: 313,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,392.52 : 491,427.64 = 227,126.32 : x
  2. Step 2: Convert to fraction form
    356,392.52/491,427.64 = 227,126.32/x
  3. Step 3: Cross multiply
    356,392.52x = 491,427.64 × 227,126.32
  4. Step 4: Simplify right side
    356,392.52x = 111,616,151,419.49
  5. Step 5: Solve for x
    x = 111,616,151,419.49/356,392.52
  6. Step 6: Final answer
    x = 313,183.20

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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.