Home / 403,141.14-556,357.74-231,087.72

Finding the Fourth Proportional to 403,141.14, 556,357.74 and 231,087.72

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Solution

The fourth proportional to 403,141.14, 556,357.74 and 231,087.72 is: 318,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,141.14 : 556,357.74 = 231,087.72 : x
  2. Step 2: Convert to fraction form
    403,141.14/556,357.74 = 231,087.72/x
  3. Step 3: Cross multiply
    403,141.14x = 556,357.74 × 231,087.72
  4. Step 4: Simplify right side
    403,141.14x = 128,567,441,640.95
  5. Step 5: Solve for x
    x = 128,567,441,640.95/403,141.14
  6. Step 6: Final answer
    x = 318,914.22

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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.