Home / 278,366.20-384,140.32-169,431.08

Finding the Fourth Proportional to 278,366.20, 384,140.32 and 169,431.08

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Solution

The fourth proportional to 278,366.20, 384,140.32 and 169,431.08 is: 233,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,366.20 : 384,140.32 = 169,431.08 : x
  2. Step 2: Convert to fraction form
    278,366.20/384,140.32 = 169,431.08/x
  3. Step 3: Cross multiply
    278,366.20x = 384,140.32 × 169,431.08
  4. Step 4: Simplify right side
    278,366.20x = 65,085,309,289.15
  5. Step 5: Solve for x
    x = 65,085,309,289.15/278,366.20
  6. Step 6: Final answer
    x = 233,811.83

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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.