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Finding the Fourth Proportional to 317,021.96, 472,229.89 and 300,192.92

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Solution

The fourth proportional to 317,021.96, 472,229.89 and 300,192.92 is: 447,161.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,021.96 : 472,229.89 = 300,192.92 : x
  2. Step 2: Convert to fraction form
    317,021.96/472,229.89 = 300,192.92/x
  3. Step 3: Cross multiply
    317,021.96x = 472,229.89 × 300,192.92
  4. Step 4: Simplify right side
    317,021.96x = 141,760,069,590.38
  5. Step 5: Solve for x
    x = 141,760,069,590.38/317,021.96
  6. Step 6: Final answer
    x = 447,161.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.