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Finding the Fourth Proportional to 291,464.56, 437,212.51 and 91,800.57

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Solution

The fourth proportional to 291,464.56, 437,212.51 and 91,800.57 is: 137,705.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,464.56 : 437,212.51 = 91,800.57 : x
  2. Step 2: Convert to fraction form
    291,464.56/437,212.51 = 91,800.57/x
  3. Step 3: Cross multiply
    291,464.56x = 437,212.51 × 91,800.57
  4. Step 4: Simplify right side
    291,464.56x = 40,136,357,629.13
  5. Step 5: Solve for x
    x = 40,136,357,629.13/291,464.56
  6. Step 6: Final answer
    x = 137,705.79

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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.