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Finding the Fourth Proportional to 255,997.08, 353,408.78 and 187,009.08

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Solution

The fourth proportional to 255,997.08, 353,408.78 and 187,009.08 is: 258,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,997.08 : 353,408.78 = 187,009.08 : x
  2. Step 2: Convert to fraction form
    255,997.08/353,408.78 = 187,009.08/x
  3. Step 3: Cross multiply
    255,997.08x = 353,408.78 × 187,009.08
  4. Step 4: Simplify right side
    255,997.08x = 66,090,648,551.39
  5. Step 5: Solve for x
    x = 66,090,648,551.39/255,997.08
  6. Step 6: Final answer
    x = 258,169.54

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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.