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Finding the Fourth Proportional to 383,250.96, 528,902.68 and 213,485.20

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Solution

The fourth proportional to 383,250.96, 528,902.68 and 213,485.20 is: 294,618.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,250.96 : 528,902.68 = 213,485.20 : x
  2. Step 2: Convert to fraction form
    383,250.96/528,902.68 = 213,485.20/x
  3. Step 3: Cross multiply
    383,250.96x = 528,902.68 × 213,485.20
  4. Step 4: Simplify right side
    383,250.96x = 112,912,894,420.34
  5. Step 5: Solve for x
    x = 112,912,894,420.34/383,250.96
  6. Step 6: Final answer
    x = 294,618.69

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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.