Home / 387,114.45-534,199.86-215,043.54

Finding the Fourth Proportional to 387,114.45, 534,199.86 and 215,043.54

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Solution

The fourth proportional to 387,114.45, 534,199.86 and 215,043.54 is: 296,750.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,114.45 : 534,199.86 = 215,043.54 : x
  2. Step 2: Convert to fraction form
    387,114.45/534,199.86 = 215,043.54/x
  3. Step 3: Cross multiply
    387,114.45x = 534,199.86 × 215,043.54
  4. Step 4: Simplify right side
    387,114.45x = 114,876,228,961.90
  5. Step 5: Solve for x
    x = 114,876,228,961.90/387,114.45
  6. Step 6: Final answer
    x = 296,750.04

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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.