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Finding the Fourth Proportional to 207,090.30, 285,778.91 and 116,443.94

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Solution

The fourth proportional to 207,090.30, 285,778.91 and 116,443.94 is: 160,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,090.30 : 285,778.91 = 116,443.94 : x
  2. Step 2: Convert to fraction form
    207,090.30/285,778.91 = 116,443.94/x
  3. Step 3: Cross multiply
    207,090.30x = 285,778.91 × 116,443.94
  4. Step 4: Simplify right side
    207,090.30x = 33,277,221,587.78
  5. Step 5: Solve for x
    x = 33,277,221,587.78/207,090.30
  6. Step 6: Final answer
    x = 160,689.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.