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Finding the Fourth Proportional to 378,228.32, 522,198.08 and 235,182.88

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Solution

The fourth proportional to 378,228.32, 522,198.08 and 235,182.88 is: 324,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,228.32 : 522,198.08 = 235,182.88 : x
  2. Step 2: Convert to fraction form
    378,228.32/522,198.08 = 235,182.88/x
  3. Step 3: Cross multiply
    378,228.32x = 522,198.08 × 235,182.88
  4. Step 4: Simplify right side
    378,228.32x = 122,812,048,384.87
  5. Step 5: Solve for x
    x = 122,812,048,384.87/378,228.32
  6. Step 6: Final answer
    x = 324,703.47

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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.