Home / 212,799.96-318,258.79-189,272.57

Finding the Fourth Proportional to 212,799.96, 318,258.79 and 189,272.57

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Solution

The fourth proportional to 212,799.96, 318,258.79 and 189,272.57 is: 283,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,799.96 : 318,258.79 = 189,272.57 : x
  2. Step 2: Convert to fraction form
    212,799.96/318,258.79 = 189,272.57/x
  3. Step 3: Cross multiply
    212,799.96x = 318,258.79 × 189,272.57
  4. Step 4: Simplify right side
    212,799.96x = 60,237,657,043.91
  5. Step 5: Solve for x
    x = 60,237,657,043.91/212,799.96
  6. Step 6: Final answer
    x = 283,071.75

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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.