Home / 515,568.10-773,343.60-211,900.72

Finding the Fourth Proportional to 515,568.10, 773,343.60 and 211,900.72

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Solution

The fourth proportional to 515,568.10, 773,343.60 and 211,900.72 is: 317,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,568.10 : 773,343.60 = 211,900.72 : x
  2. Step 2: Convert to fraction form
    515,568.10/773,343.60 = 211,900.72/x
  3. Step 3: Cross multiply
    515,568.10x = 773,343.60 × 211,900.72
  4. Step 4: Simplify right side
    515,568.10x = 163,872,065,647.39
  5. Step 5: Solve for x
    x = 163,872,065,647.39/515,568.10
  6. Step 6: Final answer
    x = 317,847.57

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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.