Home / 323,131.11-445,630.62-202,283.40

Finding the Fourth Proportional to 323,131.11, 445,630.62 and 202,283.40

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Solution

The fourth proportional to 323,131.11, 445,630.62 and 202,283.40 is: 278,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,131.11 : 445,630.62 = 202,283.40 : x
  2. Step 2: Convert to fraction form
    323,131.11/445,630.62 = 202,283.40/x
  3. Step 3: Cross multiply
    323,131.11x = 445,630.62 × 202,283.40
  4. Step 4: Simplify right side
    323,131.11x = 90,143,676,957.71
  5. Step 5: Solve for x
    x = 90,143,676,957.71/323,131.11
  6. Step 6: Final answer
    x = 278,969.35

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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.