Home / 212,227.29-318,352.28-54,457.11

Finding the Fourth Proportional to 212,227.29, 318,352.28 and 54,457.11

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Solution

The fourth proportional to 212,227.29, 318,352.28 and 54,457.11 is: 81,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,227.29 : 318,352.28 = 54,457.11 : x
  2. Step 2: Convert to fraction form
    212,227.29/318,352.28 = 54,457.11/x
  3. Step 3: Cross multiply
    212,227.29x = 318,352.28 × 54,457.11
  4. Step 4: Simplify right side
    212,227.29x = 17,336,544,858.43
  5. Step 5: Solve for x
    x = 17,336,544,858.43/212,227.29
  6. Step 6: Final answer
    x = 81,688.57

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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.