Home / 278,835.99-384,796.02-151,511.60

Finding the Fourth Proportional to 278,835.99, 384,796.02 and 151,511.60

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Solution

The fourth proportional to 278,835.99, 384,796.02 and 151,511.60 is: 209,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,835.99 : 384,796.02 = 151,511.60 : x
  2. Step 2: Convert to fraction form
    278,835.99/384,796.02 = 151,511.60/x
  3. Step 3: Cross multiply
    278,835.99x = 384,796.02 × 151,511.60
  4. Step 4: Simplify right side
    278,835.99x = 58,301,058,739.85
  5. Step 5: Solve for x
    x = 58,301,058,739.85/278,835.99
  6. Step 6: Final answer
    x = 209,087.28

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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.