Home / 278,515.48-384,351.84-151,191.16

Finding the Fourth Proportional to 278,515.48, 384,351.84 and 151,191.16

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Solution

The fourth proportional to 278,515.48, 384,351.84 and 151,191.16 is: 208,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,515.48 : 384,351.84 = 151,191.16 : x
  2. Step 2: Convert to fraction form
    278,515.48/384,351.84 = 151,191.16/x
  3. Step 3: Cross multiply
    278,515.48x = 384,351.84 × 151,191.16
  4. Step 4: Simplify right side
    278,515.48x = 58,110,600,537.73
  5. Step 5: Solve for x
    x = 58,110,600,537.73/278,515.48
  6. Step 6: Final answer
    x = 208,644.06

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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.