Home / 212,315.54-318,173.79-165,360.02

Finding the Fourth Proportional to 212,315.54, 318,173.79 and 165,360.02

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Solution

The fourth proportional to 212,315.54, 318,173.79 and 165,360.02 is: 247,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,315.54 : 318,173.79 = 165,360.02 : x
  2. Step 2: Convert to fraction form
    212,315.54/318,173.79 = 165,360.02/x
  3. Step 3: Cross multiply
    212,315.54x = 318,173.79 × 165,360.02
  4. Step 4: Simplify right side
    212,315.54x = 52,613,224,277.88
  5. Step 5: Solve for x
    x = 52,613,224,277.88/212,315.54
  6. Step 6: Final answer
    x = 247,806.75

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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.