Home / 278,529.58-384,330.27-159,274.54

Finding the Fourth Proportional to 278,529.58, 384,330.27 and 159,274.54

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Solution

The fourth proportional to 278,529.58, 384,330.27 and 159,274.54 is: 219,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,529.58 : 384,330.27 = 159,274.54 : x
  2. Step 2: Convert to fraction form
    278,529.58/384,330.27 = 159,274.54/x
  3. Step 3: Cross multiply
    278,529.58x = 384,330.27 × 159,274.54
  4. Step 4: Simplify right side
    278,529.58x = 61,214,026,962.33
  5. Step 5: Solve for x
    x = 61,214,026,962.33/278,529.58
  6. Step 6: Final answer
    x = 219,775.68

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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.