Home / 358,355.12-494,427.48-231,103.76

Finding the Fourth Proportional to 358,355.12, 494,427.48 and 231,103.76

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Solution

The fourth proportional to 358,355.12, 494,427.48 and 231,103.76 is: 318,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,355.12 : 494,427.48 = 231,103.76 : x
  2. Step 2: Convert to fraction form
    358,355.12/494,427.48 = 231,103.76/x
  3. Step 3: Cross multiply
    358,355.12x = 494,427.48 × 231,103.76
  4. Step 4: Simplify right side
    358,355.12x = 114,264,049,675.33
  5. Step 5: Solve for x
    x = 114,264,049,675.33/358,355.12
  6. Step 6: Final answer
    x = 318,857.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.