Home / 331,026.50-455,383.06-290,005.87

Finding the Fourth Proportional to 331,026.50, 455,383.06 and 290,005.87

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Solution

The fourth proportional to 331,026.50, 455,383.06 and 290,005.87 is: 398,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,026.50 : 455,383.06 = 290,005.87 : x
  2. Step 2: Convert to fraction form
    331,026.50/455,383.06 = 290,005.87/x
  3. Step 3: Cross multiply
    331,026.50x = 455,383.06 × 290,005.87
  4. Step 4: Simplify right side
    331,026.50x = 132,063,761,120.22
  5. Step 5: Solve for x
    x = 132,063,761,120.22/331,026.50
  6. Step 6: Final answer
    x = 398,952.24

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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.