Home / 278,580.16-384,441.12-151,255.36

Finding the Fourth Proportional to 278,580.16, 384,441.12 and 151,255.36

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Solution

The fourth proportional to 278,580.16, 384,441.12 and 151,255.36 is: 208,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,580.16 : 384,441.12 = 151,255.36 : x
  2. Step 2: Convert to fraction form
    278,580.16/384,441.12 = 151,255.36/x
  3. Step 3: Cross multiply
    278,580.16x = 384,441.12 × 151,255.36
  4. Step 4: Simplify right side
    278,580.16x = 58,148,780,004.40
  5. Step 5: Solve for x
    x = 58,148,780,004.40/278,580.16
  6. Step 6: Final answer
    x = 208,732.67

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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.