Home / 212,634.06-318,951.53-199,643.26

Finding the Fourth Proportional to 212,634.06, 318,951.53 and 199,643.26

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Solution

The fourth proportional to 212,634.06, 318,951.53 and 199,643.26 is: 299,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,634.06 : 318,951.53 = 199,643.26 : x
  2. Step 2: Convert to fraction form
    212,634.06/318,951.53 = 199,643.26/x
  3. Step 3: Cross multiply
    212,634.06x = 318,951.53 × 199,643.26
  4. Step 4: Simplify right side
    212,634.06x = 63,676,523,231.19
  5. Step 5: Solve for x
    x = 63,676,523,231.19/212,634.06
  6. Step 6: Final answer
    x = 299,465.30

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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.