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Finding the Fourth Proportional to 306,282.16, 422,551.20 and 225,900.28

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Solution

The fourth proportional to 306,282.16, 422,551.20 and 225,900.28 is: 311,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,282.16 : 422,551.20 = 225,900.28 : x
  2. Step 2: Convert to fraction form
    306,282.16/422,551.20 = 225,900.28/x
  3. Step 3: Cross multiply
    306,282.16x = 422,551.20 × 225,900.28
  4. Step 4: Simplify right side
    306,282.16x = 95,454,434,394.34
  5. Step 5: Solve for x
    x = 95,454,434,394.34/306,282.16
  6. Step 6: Final answer
    x = 311,655.22

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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.