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Finding the Fourth Proportional to 212,324.38, 318,486.59 and 54,552.84

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Solution

The fourth proportional to 212,324.38, 318,486.59 and 54,552.84 is: 81,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,324.38 : 318,486.59 = 54,552.84 : x
  2. Step 2: Convert to fraction form
    212,324.38/318,486.59 = 54,552.84/x
  3. Step 3: Cross multiply
    212,324.38x = 318,486.59 × 54,552.84
  4. Step 4: Simplify right side
    212,324.38x = 17,374,347,986.42
  5. Step 5: Solve for x
    x = 17,374,347,986.42/212,324.38
  6. Step 6: Final answer
    x = 81,829.27

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1.5x scale

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.