Home / 281,837.70-422,281.08-139,493.16

Finding the Fourth Proportional to 281,837.70, 422,281.08 and 139,493.16

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Solution

The fourth proportional to 281,837.70, 422,281.08 and 139,493.16 is: 209,004.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,837.70 : 422,281.08 = 139,493.16 : x
  2. Step 2: Convert to fraction form
    281,837.70/422,281.08 = 139,493.16/x
  3. Step 3: Cross multiply
    281,837.70x = 422,281.08 × 139,493.16
  4. Step 4: Simplify right side
    281,837.70x = 58,905,322,257.41
  5. Step 5: Solve for x
    x = 58,905,322,257.41/281,837.70
  6. Step 6: Final answer
    x = 209,004.41

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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.