Home / 323,128.11-445,626.48-202,280.40

Finding the Fourth Proportional to 323,128.11, 445,626.48 and 202,280.40

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Solution

The fourth proportional to 323,128.11, 445,626.48 and 202,280.40 is: 278,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,128.11 : 445,626.48 = 202,280.40 : x
  2. Step 2: Convert to fraction form
    323,128.11/445,626.48 = 202,280.40/x
  3. Step 3: Cross multiply
    323,128.11x = 445,626.48 × 202,280.40
  4. Step 4: Simplify right side
    323,128.11x = 90,141,502,624.99
  5. Step 5: Solve for x
    x = 90,141,502,624.99/323,128.11
  6. Step 6: Final answer
    x = 278,965.21

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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.