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Finding the Fourth Proportional to 138,807.98, 208,211.28 and 33,626.96

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Solution

The fourth proportional to 138,807.98, 208,211.28 and 33,626.96 is: 50,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,807.98 : 208,211.28 = 33,626.96 : x
  2. Step 2: Convert to fraction form
    138,807.98/208,211.28 = 33,626.96/x
  3. Step 3: Cross multiply
    138,807.98x = 208,211.28 × 33,626.96
  4. Step 4: Simplify right side
    138,807.98x = 7,001,512,384.11
  5. Step 5: Solve for x
    x = 7,001,512,384.11/138,807.98
  6. Step 6: Final answer
    x = 50,440.27

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1.5x scale

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.