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Finding the Fourth Proportional to 201,431.45, 301,655.10 and 151,239.80

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Solution

The fourth proportional to 201,431.45, 301,655.10 and 151,239.80 is: 226,490.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,431.45 : 301,655.10 = 151,239.80 : x
  2. Step 2: Convert to fraction form
    201,431.45/301,655.10 = 151,239.80/x
  3. Step 3: Cross multiply
    201,431.45x = 301,655.10 × 151,239.80
  4. Step 4: Simplify right side
    201,431.45x = 45,622,256,992.98
  5. Step 5: Solve for x
    x = 45,622,256,992.98/201,431.45
  6. Step 6: Final answer
    x = 226,490.24

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1.5x scale

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.