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Finding the Fourth Proportional to 200,428.50, 276,583.23 and 119,900.55

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Solution

The fourth proportional to 200,428.50, 276,583.23 and 119,900.55 is: 165,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,428.50 : 276,583.23 = 119,900.55 : x
  2. Step 2: Convert to fraction form
    200,428.50/276,583.23 = 119,900.55/x
  3. Step 3: Cross multiply
    200,428.50x = 276,583.23 × 119,900.55
  4. Step 4: Simplify right side
    200,428.50x = 33,162,481,397.78
  5. Step 5: Solve for x
    x = 33,162,481,397.78/200,428.50
  6. Step 6: Final answer
    x = 165,457.91

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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.