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Finding the Fourth Proportional to 323,435.10, 485,087.85 and 154,955.10

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Solution

The fourth proportional to 323,435.10, 485,087.85 and 154,955.10 is: 232,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,435.10 : 485,087.85 = 154,955.10 : x
  2. Step 2: Convert to fraction form
    323,435.10/485,087.85 = 154,955.10/x
  3. Step 3: Cross multiply
    323,435.10x = 485,087.85 × 154,955.10
  4. Step 4: Simplify right side
    323,435.10x = 75,166,836,305.54
  5. Step 5: Solve for x
    x = 75,166,836,305.54/323,435.10
  6. Step 6: Final answer
    x = 232,401.60

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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.