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Finding the Fourth Proportional to 291,055.38, 436,750.75 and 122,562.58

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Solution

The fourth proportional to 291,055.38, 436,750.75 and 122,562.58 is: 183,914.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,055.38 : 436,750.75 = 122,562.58 : x
  2. Step 2: Convert to fraction form
    291,055.38/436,750.75 = 122,562.58/x
  3. Step 3: Cross multiply
    291,055.38x = 436,750.75 × 122,562.58
  4. Step 4: Simplify right side
    291,055.38x = 53,529,298,736.94
  5. Step 5: Solve for x
    x = 53,529,298,736.94/291,055.38
  6. Step 6: Final answer
    x = 183,914.48

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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.