Home / 445,890.29-668,835.90-209,233.20

Finding the Fourth Proportional to 445,890.29, 668,835.90 and 209,233.20

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Solution

The fourth proportional to 445,890.29, 668,835.90 and 209,233.20 is: 313,850.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,890.29 : 668,835.90 = 209,233.20 : x
  2. Step 2: Convert to fraction form
    445,890.29/668,835.90 = 209,233.20/x
  3. Step 3: Cross multiply
    445,890.29x = 668,835.90 × 209,233.20
  4. Step 4: Simplify right side
    445,890.29x = 139,942,675,631.88
  5. Step 5: Solve for x
    x = 139,942,675,631.88/445,890.29
  6. Step 6: Final answer
    x = 313,850.02

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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.