Home / 379,267.40-523,404.15-218,122.36

Finding the Fourth Proportional to 379,267.40, 523,404.15 and 218,122.36

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Solution

The fourth proportional to 379,267.40, 523,404.15 and 218,122.36 is: 301,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,267.40 : 523,404.15 = 218,122.36 : x
  2. Step 2: Convert to fraction form
    379,267.40/523,404.15 = 218,122.36/x
  3. Step 3: Cross multiply
    379,267.40x = 523,404.15 × 218,122.36
  4. Step 4: Simplify right side
    379,267.40x = 114,166,146,305.33
  5. Step 5: Solve for x
    x = 114,166,146,305.33/379,267.40
  6. Step 6: Final answer
    x = 301,017.56

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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.