Home / 278,464.48-384,270.71-151,137.34

Finding the Fourth Proportional to 278,464.48, 384,270.71 and 151,137.34

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Solution

The fourth proportional to 278,464.48, 384,270.71 and 151,137.34 is: 208,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,464.48 : 384,270.71 = 151,137.34 : x
  2. Step 2: Convert to fraction form
    278,464.48/384,270.71 = 151,137.34/x
  3. Step 3: Cross multiply
    278,464.48x = 384,270.71 × 151,137.34
  4. Step 4: Simplify right side
    278,464.48x = 58,077,653,819.54
  5. Step 5: Solve for x
    x = 58,077,653,819.54/278,464.48
  6. Step 6: Final answer
    x = 208,563.95

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1.5x scale

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.