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Finding the Fourth Proportional to 202,302.20, 279,157.11 and 111,663.20

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Solution

The fourth proportional to 202,302.20, 279,157.11 and 111,663.20 is: 154,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,302.20 : 279,157.11 = 111,663.20 : x
  2. Step 2: Convert to fraction form
    202,302.20/279,157.11 = 111,663.20/x
  3. Step 3: Cross multiply
    202,302.20x = 279,157.11 × 111,663.20
  4. Step 4: Simplify right side
    202,302.20x = 31,171,576,205.35
  5. Step 5: Solve for x
    x = 31,171,576,205.35/202,302.20
  6. Step 6: Final answer
    x = 154,084.22

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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.