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Finding the Fourth Proportional to 291,393.33, 436,975.08 and 141,589.31

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Solution

The fourth proportional to 291,393.33, 436,975.08 and 141,589.31 is: 212,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,393.33 : 436,975.08 = 141,589.31 : x
  2. Step 2: Convert to fraction form
    291,393.33/436,975.08 = 141,589.31/x
  3. Step 3: Cross multiply
    291,393.33x = 436,975.08 × 141,589.31
  4. Step 4: Simplify right side
    291,393.33x = 61,870,997,879.52
  5. Step 5: Solve for x
    x = 61,870,997,879.52/291,393.33
  6. Step 6: Final answer
    x = 212,328.12

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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.