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Finding the Fourth Proportional to 379,429.95, 569,243.34 and 201,790.89

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Solution

The fourth proportional to 379,429.95, 569,243.34 and 201,790.89 is: 302,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,429.95 : 569,243.34 = 201,790.89 : x
  2. Step 2: Convert to fraction form
    379,429.95/569,243.34 = 201,790.89/x
  3. Step 3: Cross multiply
    379,429.95x = 569,243.34 × 201,790.89
  4. Step 4: Simplify right side
    379,429.95x = 114,868,120,205.17
  5. Step 5: Solve for x
    x = 114,868,120,205.17/379,429.95
  6. Step 6: Final answer
    x = 302,738.67

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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.