Home / 278,697.58-384,536.77-163,981.23

Finding the Fourth Proportional to 278,697.58, 384,536.77 and 163,981.23

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Solution

The fourth proportional to 278,697.58, 384,536.77 and 163,981.23 is: 226,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,697.58 : 384,536.77 = 163,981.23 : x
  2. Step 2: Convert to fraction form
    278,697.58/384,536.77 = 163,981.23/x
  3. Step 3: Cross multiply
    278,697.58x = 384,536.77 × 163,981.23
  4. Step 4: Simplify right side
    278,697.58x = 63,056,812,524.83
  5. Step 5: Solve for x
    x = 63,056,812,524.83/278,697.58
  6. Step 6: Final answer
    x = 226,255.33

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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.