Home / 397,877.40-596,822.31-221,505.39

Finding the Fourth Proportional to 397,877.40, 596,822.31 and 221,505.39

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Solution

The fourth proportional to 397,877.40, 596,822.31 and 221,505.39 is: 332,261.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,877.40 : 596,822.31 = 221,505.39 : x
  2. Step 2: Convert to fraction form
    397,877.40/596,822.31 = 221,505.39/x
  3. Step 3: Cross multiply
    397,877.40x = 596,822.31 × 221,505.39
  4. Step 4: Simplify right side
    397,877.40x = 132,199,358,537.25
  5. Step 5: Solve for x
    x = 132,199,358,537.25/397,877.40
  6. Step 6: Final answer
    x = 332,261.54

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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.