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Finding the Fourth Proportional to 303,051, 454,478.04 and 143,102.20

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Solution

The fourth proportional to 303,051, 454,478.04 and 143,102.20 is: 214,606.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,051 : 454,478.04 = 143,102.20 : x
  2. Step 2: Convert to fraction form
    303,051/454,478.04 = 143,102.20/x
  3. Step 3: Cross multiply
    303,051x = 454,478.04 × 143,102.20
  4. Step 4: Simplify right side
    303,051x = 65,036,807,375.69
  5. Step 5: Solve for x
    x = 65,036,807,375.69/303,051
  6. Step 6: Final answer
    x = 214,606.81

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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.