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Finding the Fourth Proportional to 207,534.30, 311,301.45 and 188,835.45

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Solution

The fourth proportional to 207,534.30, 311,301.45 and 188,835.45 is: 283,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,534.30 : 311,301.45 = 188,835.45 : x
  2. Step 2: Convert to fraction form
    207,534.30/311,301.45 = 188,835.45/x
  3. Step 3: Cross multiply
    207,534.30x = 311,301.45 × 188,835.45
  4. Step 4: Simplify right side
    207,534.30x = 58,784,749,396.40
  5. Step 5: Solve for x
    x = 58,784,749,396.40/207,534.30
  6. Step 6: Final answer
    x = 283,253.18

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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.