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Finding the Fourth Proportional to 291,625.79, 437,610.90 and 123,135.20

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Solution

The fourth proportional to 291,625.79, 437,610.90 and 123,135.20 is: 184,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,625.79 : 437,610.90 = 123,135.20 : x
  2. Step 2: Convert to fraction form
    291,625.79/437,610.90 = 123,135.20/x
  3. Step 3: Cross multiply
    291,625.79x = 437,610.90 × 123,135.20
  4. Step 4: Simplify right side
    291,625.79x = 53,885,303,505.63
  5. Step 5: Solve for x
    x = 53,885,303,505.63/291,625.79
  6. Step 6: Final answer
    x = 184,775.51

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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.