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Finding the Fourth Proportional to 339,055, 508,570.21 and 102,391.63

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Solution

The fourth proportional to 339,055, 508,570.21 and 102,391.63 is: 153,583.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,055 : 508,570.21 = 102,391.63 : x
  2. Step 2: Convert to fraction form
    339,055/508,570.21 = 102,391.63/x
  3. Step 3: Cross multiply
    339,055x = 508,570.21 × 102,391.63
  4. Step 4: Simplify right side
    339,055x = 52,073,332,771.34
  5. Step 5: Solve for x
    x = 52,073,332,771.34/339,055
  6. Step 6: Final answer
    x = 153,583.73

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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.