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Finding the Fourth Proportional to 339,820.05, 509,703.40 and 197,574.67

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Solution

The fourth proportional to 339,820.05, 509,703.40 and 197,574.67 is: 296,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,820.05 : 509,703.40 = 197,574.67 : x
  2. Step 2: Convert to fraction form
    339,820.05/509,703.40 = 197,574.67/x
  3. Step 3: Cross multiply
    339,820.05x = 509,703.40 × 197,574.67
  4. Step 4: Simplify right side
    339,820.05x = 100,704,481,052.88
  5. Step 5: Solve for x
    x = 100,704,481,052.88/339,820.05
  6. Step 6: Final answer
    x = 296,346.50

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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.