Home / 278,429.40-384,233.94-151,105.14

Finding the Fourth Proportional to 278,429.40, 384,233.94 and 151,105.14

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Solution

The fourth proportional to 278,429.40, 384,233.94 and 151,105.14 is: 208,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,429.40 : 384,233.94 = 151,105.14 : x
  2. Step 2: Convert to fraction form
    278,429.40/384,233.94 = 151,105.14/x
  3. Step 3: Cross multiply
    278,429.40x = 384,233.94 × 151,105.14
  4. Step 4: Simplify right side
    278,429.40x = 58,059,723,296.45
  5. Step 5: Solve for x
    x = 58,059,723,296.45/278,429.40
  6. Step 6: Final answer
    x = 208,525.84

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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.