Home / 378,839.37-522,803.16-223,795.77

Finding the Fourth Proportional to 378,839.37, 522,803.16 and 223,795.77

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Solution

The fourth proportional to 378,839.37, 522,803.16 and 223,795.77 is: 308,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,839.37 : 522,803.16 = 223,795.77 : x
  2. Step 2: Convert to fraction form
    378,839.37/522,803.16 = 223,795.77/x
  3. Step 3: Cross multiply
    378,839.37x = 522,803.16 × 223,795.77
  4. Step 4: Simplify right side
    378,839.37x = 117,001,135,750.63
  5. Step 5: Solve for x
    x = 117,001,135,750.63/378,839.37
  6. Step 6: Final answer
    x = 308,841.02

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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.