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Finding the Fourth Proportional to 437,906.40, 657,151.20 and 201,127.20

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Solution

The fourth proportional to 437,906.40, 657,151.20 and 201,127.20 is: 301,824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,906.40 : 657,151.20 = 201,127.20 : x
  2. Step 2: Convert to fraction form
    437,906.40/657,151.20 = 201,127.20/x
  3. Step 3: Cross multiply
    437,906.40x = 657,151.20 × 201,127.20
  4. Step 4: Simplify right side
    437,906.40x = 132,170,980,832.64
  5. Step 5: Solve for x
    x = 132,170,980,832.64/437,906.40
  6. Step 6: Final answer
    x = 301,824.73

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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.