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Finding the Fourth Proportional to 200,515, 276,710.70 and 119,945.92

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Solution

The fourth proportional to 200,515, 276,710.70 and 119,945.92 is: 165,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,515 : 276,710.70 = 119,945.92 : x
  2. Step 2: Convert to fraction form
    200,515/276,710.70 = 119,945.92/x
  3. Step 3: Cross multiply
    200,515x = 276,710.70 × 119,945.92
  4. Step 4: Simplify right side
    200,515x = 33,190,319,485.34
  5. Step 5: Solve for x
    x = 33,190,319,485.34/200,515
  6. Step 6: Final answer
    x = 165,525.37

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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.