Home / 281,730.10-422,558.16-139,520.02

Finding the Fourth Proportional to 281,730.10, 422,558.16 and 139,520.02

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Solution

The fourth proportional to 281,730.10, 422,558.16 and 139,520.02 is: 209,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,730.10 : 422,558.16 = 139,520.02 : x
  2. Step 2: Convert to fraction form
    281,730.10/422,558.16 = 139,520.02/x
  3. Step 3: Cross multiply
    281,730.10x = 422,558.16 × 139,520.02
  4. Step 4: Simplify right side
    281,730.10x = 58,955,322,934.36
  5. Step 5: Solve for x
    x = 58,955,322,934.36/281,730.10
  6. Step 6: Final answer
    x = 209,261.71

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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.