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Finding the Fourth Proportional to 202,801.10, 303,987.13 and 76,386.64

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Solution

The fourth proportional to 202,801.10, 303,987.13 and 76,386.64 is: 114,499.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,801.10 : 303,987.13 = 76,386.64 : x
  2. Step 2: Convert to fraction form
    202,801.10/303,987.13 = 76,386.64/x
  3. Step 3: Cross multiply
    202,801.10x = 303,987.13 × 76,386.64
  4. Step 4: Simplify right side
    202,801.10x = 23,220,555,082.01
  5. Step 5: Solve for x
    x = 23,220,555,082.01/202,801.10
  6. Step 6: Final answer
    x = 114,499.16

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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.