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Finding the Fourth Proportional to 378,474.71, 567,069.41 and 228,399.64

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Solution

The fourth proportional to 378,474.71, 567,069.41 and 228,399.64 is: 342,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,474.71 : 567,069.41 = 228,399.64 : x
  2. Step 2: Convert to fraction form
    378,474.71/567,069.41 = 228,399.64/x
  3. Step 3: Cross multiply
    378,474.71x = 567,069.41 × 228,399.64
  4. Step 4: Simplify right side
    378,474.71x = 129,518,448,252.34
  5. Step 5: Solve for x
    x = 129,518,448,252.34/378,474.71
  6. Step 6: Final answer
    x = 342,211.64

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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.