Home / 278,739.88-384,615.44-164,115.12

Finding the Fourth Proportional to 278,739.88, 384,615.44 and 164,115.12

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Solution

The fourth proportional to 278,739.88, 384,615.44 and 164,115.12 is: 226,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,739.88 : 384,615.44 = 164,115.12 : x
  2. Step 2: Convert to fraction form
    278,739.88/384,615.44 = 164,115.12/x
  3. Step 3: Cross multiply
    278,739.88x = 384,615.44 × 164,115.12
  4. Step 4: Simplify right side
    278,739.88x = 63,121,209,089.45
  5. Step 5: Solve for x
    x = 63,121,209,089.45/278,739.88
  6. Step 6: Final answer
    x = 226,452.02

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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.