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Finding the Fourth Proportional to 287,782.74, 397,169.73 and 173,098.26

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Solution

The fourth proportional to 287,782.74, 397,169.73 and 173,098.26 is: 238,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,782.74 : 397,169.73 = 173,098.26 : x
  2. Step 2: Convert to fraction form
    287,782.74/397,169.73 = 173,098.26/x
  3. Step 3: Cross multiply
    287,782.74x = 397,169.73 × 173,098.26
  4. Step 4: Simplify right side
    287,782.74x = 68,749,389,187.67
  5. Step 5: Solve for x
    x = 68,749,389,187.67/287,782.74
  6. Step 6: Final answer
    x = 238,893.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.