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Finding the Fourth Proportional to 207,385.21, 286,188.41 and 116,740.89

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Solution

The fourth proportional to 207,385.21, 286,188.41 and 116,740.89 is: 161,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,385.21 : 286,188.41 = 116,740.89 : x
  2. Step 2: Convert to fraction form
    207,385.21/286,188.41 = 116,740.89/x
  3. Step 3: Cross multiply
    207,385.21x = 286,188.41 × 116,740.89
  4. Step 4: Simplify right side
    207,385.21x = 33,409,889,982.94
  5. Step 5: Solve for x
    x = 33,409,889,982.94/207,385.21
  6. Step 6: Final answer
    x = 161,100.64

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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.