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Finding the Fourth Proportional to 383,213.52, 528,827.40 and 240,052.50

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Solution

The fourth proportional to 383,213.52, 528,827.40 and 240,052.50 is: 331,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,213.52 : 528,827.40 = 240,052.50 : x
  2. Step 2: Convert to fraction form
    383,213.52/528,827.40 = 240,052.50/x
  3. Step 3: Cross multiply
    383,213.52x = 528,827.40 × 240,052.50
  4. Step 4: Simplify right side
    383,213.52x = 126,946,339,438.50
  5. Step 5: Solve for x
    x = 126,946,339,438.50/383,213.52
  6. Step 6: Final answer
    x = 331,267.90

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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.