Home / 278,763.45-384,694.02-151,439.16

Finding the Fourth Proportional to 278,763.45, 384,694.02 and 151,439.16

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Solution

The fourth proportional to 278,763.45, 384,694.02 and 151,439.16 is: 208,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,763.45 : 384,694.02 = 151,439.16 : x
  2. Step 2: Convert to fraction form
    278,763.45/384,694.02 = 151,439.16/x
  3. Step 3: Cross multiply
    278,763.45x = 384,694.02 × 151,439.16
  4. Step 4: Simplify right side
    278,763.45x = 58,257,739,245.82
  5. Step 5: Solve for x
    x = 58,257,739,245.82/278,763.45
  6. Step 6: Final answer
    x = 208,986.29

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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.