Home / 326,136.24-488,431.02-258,450.64

Finding the Fourth Proportional to 326,136.24, 488,431.02 and 258,450.64

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Solution

The fourth proportional to 326,136.24, 488,431.02 and 258,450.64 is: 387,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,136.24 : 488,431.02 = 258,450.64 : x
  2. Step 2: Convert to fraction form
    326,136.24/488,431.02 = 258,450.64/x
  3. Step 3: Cross multiply
    326,136.24x = 488,431.02 × 258,450.64
  4. Step 4: Simplify right side
    326,136.24x = 126,235,309,714.85
  5. Step 5: Solve for x
    x = 126,235,309,714.85/326,136.24
  6. Step 6: Final answer
    x = 387,063.12

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1.5x scale

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.