Home / 351,795.90-528,082.65-218,826.30

Finding the Fourth Proportional to 351,795.90, 528,082.65 and 218,826.30

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Solution

The fourth proportional to 351,795.90, 528,082.65 and 218,826.30 is: 328,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,795.90 : 528,082.65 = 218,826.30 : x
  2. Step 2: Convert to fraction form
    351,795.90/528,082.65 = 218,826.30/x
  3. Step 3: Cross multiply
    351,795.90x = 528,082.65 × 218,826.30
  4. Step 4: Simplify right side
    351,795.90x = 115,558,372,393.70
  5. Step 5: Solve for x
    x = 115,558,372,393.70/351,795.90
  6. Step 6: Final answer
    x = 328,481.29

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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.