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Finding the Fourth Proportional to 339,483.70, 509,336.10 and 161,967.72

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Solution

The fourth proportional to 339,483.70, 509,336.10 and 161,967.72 is: 243,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,483.70 : 509,336.10 = 161,967.72 : x
  2. Step 2: Convert to fraction form
    339,483.70/509,336.10 = 161,967.72/x
  3. Step 3: Cross multiply
    339,483.70x = 509,336.10 × 161,967.72
  4. Step 4: Simplify right side
    339,483.70x = 82,496,006,830.69
  5. Step 5: Solve for x
    x = 82,496,006,830.69/339,483.70
  6. Step 6: Final answer
    x = 243,004.32

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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.