Home / 274,505.05-378,816.86-153,646.30

Finding the Fourth Proportional to 274,505.05, 378,816.86 and 153,646.30

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Solution

The fourth proportional to 274,505.05, 378,816.86 and 153,646.30 is: 212,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,505.05 : 378,816.86 = 153,646.30 : x
  2. Step 2: Convert to fraction form
    274,505.05/378,816.86 = 153,646.30/x
  3. Step 3: Cross multiply
    274,505.05x = 378,816.86 × 153,646.30
  4. Step 4: Simplify right side
    274,505.05x = 58,203,809,342.12
  5. Step 5: Solve for x
    x = 58,203,809,342.12/274,505.05
  6. Step 6: Final answer
    x = 212,031.84

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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.