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Finding the Fourth Proportional to 323,428.80, 446,332.74 and 194,369.60

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Solution

The fourth proportional to 323,428.80, 446,332.74 and 194,369.60 is: 268,230.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,428.80 : 446,332.74 = 194,369.60 : x
  2. Step 2: Convert to fraction form
    323,428.80/446,332.74 = 194,369.60/x
  3. Step 3: Cross multiply
    323,428.80x = 446,332.74 × 194,369.60
  4. Step 4: Simplify right side
    323,428.80x = 86,753,516,140.70
  5. Step 5: Solve for x
    x = 86,753,516,140.70/323,428.80
  6. Step 6: Final answer
    x = 268,230.65

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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.