Home / 278,462.66-384,278.85-151,138.27

Finding the Fourth Proportional to 278,462.66, 384,278.85 and 151,138.27

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Solution

The fourth proportional to 278,462.66, 384,278.85 and 151,138.27 is: 208,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,462.66 : 384,278.85 = 151,138.27 : x
  2. Step 2: Convert to fraction form
    278,462.66/384,278.85 = 151,138.27/x
  3. Step 3: Cross multiply
    278,462.66x = 384,278.85 × 151,138.27
  4. Step 4: Simplify right side
    278,462.66x = 58,079,240,586.59
  5. Step 5: Solve for x
    x = 58,079,240,586.59/278,462.66
  6. Step 6: Final answer
    x = 208,571.02

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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.