Home / 379,747.72-524,052.08-216,399.60

Finding the Fourth Proportional to 379,747.72, 524,052.08 and 216,399.60

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Solution

The fourth proportional to 379,747.72, 524,052.08 and 216,399.60 is: 298,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,747.72 : 524,052.08 = 216,399.60 : x
  2. Step 2: Convert to fraction form
    379,747.72/524,052.08 = 216,399.60/x
  3. Step 3: Cross multiply
    379,747.72x = 524,052.08 × 216,399.60
  4. Step 4: Simplify right side
    379,747.72x = 113,404,660,491.17
  5. Step 5: Solve for x
    x = 113,404,660,491.17/379,747.72
  6. Step 6: Final answer
    x = 298,631.58

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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.