Home / 278,452.36-384,261.06-151,128.04

Finding the Fourth Proportional to 278,452.36, 384,261.06 and 151,128.04

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Solution

The fourth proportional to 278,452.36, 384,261.06 and 151,128.04 is: 208,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,452.36 : 384,261.06 = 151,128.04 : x
  2. Step 2: Convert to fraction form
    278,452.36/384,261.06 = 151,128.04/x
  3. Step 3: Cross multiply
    278,452.36x = 384,261.06 × 151,128.04
  4. Step 4: Simplify right side
    278,452.36x = 58,072,620,846.12
  5. Step 5: Solve for x
    x = 58,072,620,846.12/278,452.36
  6. Step 6: Final answer
    x = 208,554.96

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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.