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Finding the Fourth Proportional to 303,189, 418,395.15 and 167,235.63

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Solution

The fourth proportional to 303,189, 418,395.15 and 167,235.63 is: 230,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,189 : 418,395.15 = 167,235.63 : x
  2. Step 2: Convert to fraction form
    303,189/418,395.15 = 167,235.63/x
  3. Step 3: Cross multiply
    303,189x = 418,395.15 × 167,235.63
  4. Step 4: Simplify right side
    303,189x = 69,970,576,499.19
  5. Step 5: Solve for x
    x = 69,970,576,499.19/303,189
  6. Step 6: Final answer
    x = 230,782.04

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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.