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Finding the Fourth Proportional to 225,298.72, 310,891.13 and 134,636.64

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Solution

The fourth proportional to 225,298.72, 310,891.13 and 134,636.64 is: 185,785.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,298.72 : 310,891.13 = 134,636.64 : x
  2. Step 2: Convert to fraction form
    225,298.72/310,891.13 = 134,636.64/x
  3. Step 3: Cross multiply
    225,298.72x = 310,891.13 × 134,636.64
  4. Step 4: Simplify right side
    225,298.72x = 41,857,337,149.00
  5. Step 5: Solve for x
    x = 41,857,337,149.00/225,298.72
  6. Step 6: Final answer
    x = 185,785.95

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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.