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Finding the Fourth Proportional to 200,753.16, 301,146.12 and 100,861.80

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Solution

The fourth proportional to 200,753.16, 301,146.12 and 100,861.80 is: 151,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,753.16 : 301,146.12 = 100,861.80 : x
  2. Step 2: Convert to fraction form
    200,753.16/301,146.12 = 100,861.80/x
  3. Step 3: Cross multiply
    200,753.16x = 301,146.12 × 100,861.80
  4. Step 4: Simplify right side
    200,753.16x = 30,374,139,726.22
  5. Step 5: Solve for x
    x = 30,374,139,726.22/200,753.16
  6. Step 6: Final answer
    x = 151,300.93

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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.