Home / 262,455.21-393,375.51-100,242.90

Finding the Fourth Proportional to 262,455.21, 393,375.51 and 100,242.90

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Solution

The fourth proportional to 262,455.21, 393,375.51 and 100,242.90 is: 150,246.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,455.21 : 393,375.51 = 100,242.90 : x
  2. Step 2: Convert to fraction form
    262,455.21/393,375.51 = 100,242.90/x
  3. Step 3: Cross multiply
    262,455.21x = 393,375.51 × 100,242.90
  4. Step 4: Simplify right side
    262,455.21x = 39,433,101,911.38
  5. Step 5: Solve for x
    x = 39,433,101,911.38/262,455.21
  6. Step 6: Final answer
    x = 150,246.98

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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.