Home / 437,204.72-655,635.12-212,499.32

Finding the Fourth Proportional to 437,204.72, 655,635.12 and 212,499.32

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Solution

The fourth proportional to 437,204.72, 655,635.12 and 212,499.32 is: 318,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,204.72 : 655,635.12 = 212,499.32 : x
  2. Step 2: Convert to fraction form
    437,204.72/655,635.12 = 212,499.32/x
  3. Step 3: Cross multiply
    437,204.72x = 655,635.12 × 212,499.32
  4. Step 4: Simplify right side
    437,204.72x = 139,322,017,168.12
  5. Step 5: Solve for x
    x = 139,322,017,168.12/437,204.72
  6. Step 6: Final answer
    x = 318,665.40

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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.