Home / 291,949.21-402,890.22-171,066.43

Finding the Fourth Proportional to 291,949.21, 402,890.22 and 171,066.43

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Solution

The fourth proportional to 291,949.21, 402,890.22 and 171,066.43 is: 236,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,949.21 : 402,890.22 = 171,066.43 : x
  2. Step 2: Convert to fraction form
    291,949.21/402,890.22 = 171,066.43/x
  3. Step 3: Cross multiply
    291,949.21x = 402,890.22 × 171,066.43
  4. Step 4: Simplify right side
    291,949.21x = 68,920,991,617.31
  5. Step 5: Solve for x
    x = 68,920,991,617.31/291,949.21
  6. Step 6: Final answer
    x = 236,071.86

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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.