Home / 278,412.82-384,205.62-163,704.40

Finding the Fourth Proportional to 278,412.82, 384,205.62 and 163,704.40

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Solution

The fourth proportional to 278,412.82, 384,205.62 and 163,704.40 is: 225,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,412.82 : 384,205.62 = 163,704.40 : x
  2. Step 2: Convert to fraction form
    278,412.82/384,205.62 = 163,704.40/x
  3. Step 3: Cross multiply
    278,412.82x = 384,205.62 × 163,704.40
  4. Step 4: Simplify right side
    278,412.82x = 62,896,150,498.73
  5. Step 5: Solve for x
    x = 62,896,150,498.73/278,412.82
  6. Step 6: Final answer
    x = 225,909.68

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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.