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Finding the Fourth Proportional to 339,765.40, 509,648.10 and 303,023.80

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Solution

The fourth proportional to 339,765.40, 509,648.10 and 303,023.80 is: 454,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,765.40 : 509,648.10 = 303,023.80 : x
  2. Step 2: Convert to fraction form
    339,765.40/509,648.10 = 303,023.80/x
  3. Step 3: Cross multiply
    339,765.40x = 509,648.10 × 303,023.80
  4. Step 4: Simplify right side
    339,765.40x = 154,435,503,924.78
  5. Step 5: Solve for x
    x = 154,435,503,924.78/339,765.40
  6. Step 6: Final answer
    x = 454,535.70

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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.