Home / 397,839.67-549,065.59-223,438.57

Finding the Fourth Proportional to 397,839.67, 549,065.59 and 223,438.57

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Solution

The fourth proportional to 397,839.67, 549,065.59 and 223,438.57 is: 308,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,839.67 : 549,065.59 = 223,438.57 : x
  2. Step 2: Convert to fraction form
    397,839.67/549,065.59 = 223,438.57/x
  3. Step 3: Cross multiply
    397,839.67x = 549,065.59 × 223,438.57
  4. Step 4: Simplify right side
    397,839.67x = 122,682,428,334.55
  5. Step 5: Solve for x
    x = 122,682,428,334.55/397,839.67
  6. Step 6: Final answer
    x = 308,371.53

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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.