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Finding the Fourth Proportional to 383,038.94, 528,576.67 and 219,578.26

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Solution

The fourth proportional to 383,038.94, 528,576.67 and 219,578.26 is: 303,008.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,038.94 : 528,576.67 = 219,578.26 : x
  2. Step 2: Convert to fraction form
    383,038.94/528,576.67 = 219,578.26/x
  3. Step 3: Cross multiply
    383,038.94x = 528,576.67 × 219,578.26
  4. Step 4: Simplify right side
    383,038.94x = 116,063,945,475.19
  5. Step 5: Solve for x
    x = 116,063,945,475.19/383,038.94
  6. Step 6: Final answer
    x = 303,008.21

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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.