Home / 212,006.46-318,020.58-54,236.28

Finding the Fourth Proportional to 212,006.46, 318,020.58 and 54,236.28

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Solution

The fourth proportional to 212,006.46, 318,020.58 and 54,236.28 is: 81,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,006.46 : 318,020.58 = 54,236.28 : x
  2. Step 2: Convert to fraction form
    212,006.46/318,020.58 = 54,236.28/x
  3. Step 3: Cross multiply
    212,006.46x = 318,020.58 × 54,236.28
  4. Step 4: Simplify right side
    212,006.46x = 17,248,253,222.64
  5. Step 5: Solve for x
    x = 17,248,253,222.64/212,006.46
  6. Step 6: Final answer
    x = 81,357.21

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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.