Home / 443,245.96-664,510.38-139,485.16

Finding the Fourth Proportional to 443,245.96, 664,510.38 and 139,485.16

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Solution

The fourth proportional to 443,245.96, 664,510.38 and 139,485.16 is: 209,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,245.96 : 664,510.38 = 139,485.16 : x
  2. Step 2: Convert to fraction form
    443,245.96/664,510.38 = 139,485.16/x
  3. Step 3: Cross multiply
    443,245.96x = 664,510.38 × 139,485.16
  4. Step 4: Simplify right side
    443,245.96x = 92,689,336,675.96
  5. Step 5: Solve for x
    x = 92,689,336,675.96/443,245.96
  6. Step 6: Final answer
    x = 209,114.90

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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.