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Finding the Fourth Proportional to 257,175.39, 355,579.28 and 225,252.71

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Solution

The fourth proportional to 257,175.39, 355,579.28 and 225,252.71 is: 311,441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,175.39 : 355,579.28 = 225,252.71 : x
  2. Step 2: Convert to fraction form
    257,175.39/355,579.28 = 225,252.71/x
  3. Step 3: Cross multiply
    257,175.39x = 355,579.28 × 225,252.71
  4. Step 4: Simplify right side
    257,175.39x = 80,095,195,713.81
  5. Step 5: Solve for x
    x = 80,095,195,713.81/257,175.39
  6. Step 6: Final answer
    x = 311,441.91

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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.