Home / 278,907.78-384,895.24-151,583.52

Finding the Fourth Proportional to 278,907.78, 384,895.24 and 151,583.52

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Solution

The fourth proportional to 278,907.78, 384,895.24 and 151,583.52 is: 209,186.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,907.78 : 384,895.24 = 151,583.52 : x
  2. Step 2: Convert to fraction form
    278,907.78/384,895.24 = 151,583.52/x
  3. Step 3: Cross multiply
    278,907.78x = 384,895.24 × 151,583.52
  4. Step 4: Simplify right side
    278,907.78x = 58,343,775,310.44
  5. Step 5: Solve for x
    x = 58,343,775,310.44/278,907.78
  6. Step 6: Final answer
    x = 209,186.62

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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.