Home / 278,519.12-384,355.44-151,193.80

Finding the Fourth Proportional to 278,519.12, 384,355.44 and 151,193.80

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Solution

The fourth proportional to 278,519.12, 384,355.44 and 151,193.80 is: 208,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,519.12 : 384,355.44 = 151,193.80 : x
  2. Step 2: Convert to fraction form
    278,519.12/384,355.44 = 151,193.80/x
  3. Step 3: Cross multiply
    278,519.12x = 384,355.44 × 151,193.80
  4. Step 4: Simplify right side
    278,519.12x = 58,112,159,524.27
  5. Step 5: Solve for x
    x = 58,112,159,524.27/278,519.12
  6. Step 6: Final answer
    x = 208,646.93

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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.