Home / 379,868.52-524,183.40-210,099

Finding the Fourth Proportional to 379,868.52, 524,183.40 and 210,099

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Solution

The fourth proportional to 379,868.52, 524,183.40 and 210,099 is: 289,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,868.52 : 524,183.40 = 210,099 : x
  2. Step 2: Convert to fraction form
    379,868.52/524,183.40 = 210,099/x
  3. Step 3: Cross multiply
    379,868.52x = 524,183.40 × 210,099
  4. Step 4: Simplify right side
    379,868.52x = 110,130,408,156.60
  5. Step 5: Solve for x
    x = 110,130,408,156.60/379,868.52
  6. Step 6: Final answer
    x = 289,917.17

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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.