Home / 339,845.40-509,768.10-103,176.60

Finding the Fourth Proportional to 339,845.40, 509,768.10 and 103,176.60

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Solution

The fourth proportional to 339,845.40, 509,768.10 and 103,176.60 is: 154,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,845.40 : 509,768.10 = 103,176.60 : x
  2. Step 2: Convert to fraction form
    339,845.40/509,768.10 = 103,176.60/x
  3. Step 3: Cross multiply
    339,845.40x = 509,768.10 × 103,176.60
  4. Step 4: Simplify right side
    339,845.40x = 52,596,139,346.46
  5. Step 5: Solve for x
    x = 52,596,139,346.46/339,845.40
  6. Step 6: Final answer
    x = 154,764.90

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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.