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Finding the Fourth Proportional to 207,175.82, 285,905.59 and 122,292.89

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Solution

The fourth proportional to 207,175.82, 285,905.59 and 122,292.89 is: 168,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,175.82 : 285,905.59 = 122,292.89 : x
  2. Step 2: Convert to fraction form
    207,175.82/285,905.59 = 122,292.89/x
  3. Step 3: Cross multiply
    207,175.82x = 285,905.59 × 122,292.89
  4. Step 4: Simplify right side
    207,175.82x = 34,964,219,132.99
  5. Step 5: Solve for x
    x = 34,964,219,132.99/207,175.82
  6. Step 6: Final answer
    x = 168,765.92

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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.