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Finding the Fourth Proportional to 138,802.27, 208,203.19 and 33,620.93

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Solution

The fourth proportional to 138,802.27, 208,203.19 and 33,620.93 is: 50,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,802.27 : 208,203.19 = 33,620.93 : x
  2. Step 2: Convert to fraction form
    138,802.27/208,203.19 = 33,620.93/x
  3. Step 3: Cross multiply
    138,802.27x = 208,203.19 × 33,620.93
  4. Step 4: Simplify right side
    138,802.27x = 6,999,984,876.77
  5. Step 5: Solve for x
    x = 6,999,984,876.77/138,802.27
  6. Step 6: Final answer
    x = 50,431.34

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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.