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Finding the Fourth Proportional to 388,275.52, 535,771.04 and 227,098.88

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Solution

The fourth proportional to 388,275.52, 535,771.04 and 227,098.88 is: 313,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,275.52 : 535,771.04 = 227,098.88 : x
  2. Step 2: Convert to fraction form
    388,275.52/535,771.04 = 227,098.88/x
  3. Step 3: Cross multiply
    388,275.52x = 535,771.04 × 227,098.88
  4. Step 4: Simplify right side
    388,275.52x = 121,673,003,120.44
  5. Step 5: Solve for x
    x = 121,673,003,120.44/388,275.52
  6. Step 6: Final answer
    x = 313,367.69

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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.