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Finding the Fourth Proportional to 291,349.51, 436,443.00 and 231,479.36

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Solution

The fourth proportional to 291,349.51, 436,443.00 and 231,479.36 is: 346,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,349.51 : 436,443.00 = 231,479.36 : x
  2. Step 2: Convert to fraction form
    291,349.51/436,443.00 = 231,479.36/x
  3. Step 3: Cross multiply
    291,349.51x = 436,443.00 × 231,479.36
  4. Step 4: Simplify right side
    291,349.51x = 101,027,544,902.88
  5. Step 5: Solve for x
    x = 101,027,544,902.88/291,349.51
  6. Step 6: Final answer
    x = 346,757.22

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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.