Home / 278,466.41-384,278.82-151,139.27

Finding the Fourth Proportional to 278,466.41, 384,278.82 and 151,139.27

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Solution

The fourth proportional to 278,466.41, 384,278.82 and 151,139.27 is: 208,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,466.41 : 384,278.82 = 151,139.27 : x
  2. Step 2: Convert to fraction form
    278,466.41/384,278.82 = 151,139.27/x
  3. Step 3: Cross multiply
    278,466.41x = 384,278.82 × 151,139.27
  4. Step 4: Simplify right side
    278,466.41x = 58,079,618,409.87
  5. Step 5: Solve for x
    x = 58,079,618,409.87/278,466.41
  6. Step 6: Final answer
    x = 208,569.57

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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.