Home / 278,110.04-383,794.80-163,393.48

Finding the Fourth Proportional to 278,110.04, 383,794.80 and 163,393.48

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Solution

The fourth proportional to 278,110.04, 383,794.80 and 163,393.48 is: 225,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,110.04 : 383,794.80 = 163,393.48 : x
  2. Step 2: Convert to fraction form
    278,110.04/383,794.80 = 163,393.48/x
  3. Step 3: Cross multiply
    278,110.04x = 383,794.80 × 163,393.48
  4. Step 4: Simplify right side
    278,110.04x = 62,709,567,977.90
  5. Step 5: Solve for x
    x = 62,709,567,977.90/278,110.04
  6. Step 6: Final answer
    x = 225,484.73

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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.