Home / 278,687.07-384,587.87-151,362.77

Finding the Fourth Proportional to 278,687.07, 384,587.87 and 151,362.77

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Solution

The fourth proportional to 278,687.07, 384,587.87 and 151,362.77 is: 208,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,687.07 : 384,587.87 = 151,362.77 : x
  2. Step 2: Convert to fraction form
    278,687.07/384,587.87 = 151,362.77/x
  3. Step 3: Cross multiply
    278,687.07x = 384,587.87 × 151,362.77
  4. Step 4: Simplify right side
    278,687.07x = 58,212,282,631.85
  5. Step 5: Solve for x
    x = 58,212,282,631.85/278,687.07
  6. Step 6: Final answer
    x = 208,880.46

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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.