Home / 278,805.36-384,738.85-157,944.18

Finding the Fourth Proportional to 278,805.36, 384,738.85 and 157,944.18

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Solution

The fourth proportional to 278,805.36, 384,738.85 and 157,944.18 is: 217,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,805.36 : 384,738.85 = 157,944.18 : x
  2. Step 2: Convert to fraction form
    278,805.36/384,738.85 = 157,944.18/x
  3. Step 3: Cross multiply
    278,805.36x = 384,738.85 × 157,944.18
  4. Step 4: Simplify right side
    278,805.36x = 60,767,262,177.39
  5. Step 5: Solve for x
    x = 60,767,262,177.39/278,805.36
  6. Step 6: Final answer
    x = 217,955.86

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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.