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Finding the Fourth Proportional to 281,360.74, 422,039.28 and 70,998.88

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Solution

The fourth proportional to 281,360.74, 422,039.28 and 70,998.88 is: 106,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,360.74 : 422,039.28 = 70,998.88 : x
  2. Step 2: Convert to fraction form
    281,360.74/422,039.28 = 70,998.88/x
  3. Step 3: Cross multiply
    281,360.74x = 422,039.28 × 70,998.88
  4. Step 4: Simplify right side
    281,360.74x = 29,964,316,196.01
  5. Step 5: Solve for x
    x = 29,964,316,196.01/281,360.74
  6. Step 6: Final answer
    x = 106,497.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.