Home / 278,468.36-384,287.07-151,143.95

Finding the Fourth Proportional to 278,468.36, 384,287.07 and 151,143.95

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Solution

The fourth proportional to 278,468.36, 384,287.07 and 151,143.95 is: 208,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,468.36 : 384,287.07 = 151,143.95 : x
  2. Step 2: Convert to fraction form
    278,468.36/384,287.07 = 151,143.95/x
  3. Step 3: Cross multiply
    278,468.36x = 384,287.07 × 151,143.95
  4. Step 4: Simplify right side
    278,468.36x = 58,082,665,693.73
  5. Step 5: Solve for x
    x = 58,082,665,693.73/278,468.36
  6. Step 6: Final answer
    x = 208,579.05

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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.