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Finding the Fourth Proportional to 245,671.38, 339,034.05 and 133,791.60

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Solution

The fourth proportional to 245,671.38, 339,034.05 and 133,791.60 is: 184,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,671.38 : 339,034.05 = 133,791.60 : x
  2. Step 2: Convert to fraction form
    245,671.38/339,034.05 = 133,791.60/x
  3. Step 3: Cross multiply
    245,671.38x = 339,034.05 × 133,791.60
  4. Step 4: Simplify right side
    245,671.38x = 45,359,908,003.98
  5. Step 5: Solve for x
    x = 45,359,908,003.98/245,671.38
  6. Step 6: Final answer
    x = 184,636.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.