Home / 403,265.63-556,441.43-231,151.90

Finding the Fourth Proportional to 403,265.63, 556,441.43 and 231,151.90

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Solution

The fourth proportional to 403,265.63, 556,441.43 and 231,151.90 is: 318,952.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,265.63 : 556,441.43 = 231,151.90 : x
  2. Step 2: Convert to fraction form
    403,265.63/556,441.43 = 231,151.90/x
  3. Step 3: Cross multiply
    403,265.63x = 556,441.43 × 231,151.90
  4. Step 4: Simplify right side
    403,265.63x = 128,622,491,236.35
  5. Step 5: Solve for x
    x = 128,622,491,236.35/403,265.63
  6. Step 6: Final answer
    x = 318,952.28

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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.