Home / 278,670.90-384,589.58-157,833.70

Finding the Fourth Proportional to 278,670.90, 384,589.58 and 157,833.70

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Solution

The fourth proportional to 278,670.90, 384,589.58 and 157,833.70 is: 217,823.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,670.90 : 384,589.58 = 157,833.70 : x
  2. Step 2: Convert to fraction form
    278,670.90/384,589.58 = 157,833.70/x
  3. Step 3: Cross multiply
    278,670.90x = 384,589.58 × 157,833.70
  4. Step 4: Simplify right side
    278,670.90x = 60,701,196,392.85
  5. Step 5: Solve for x
    x = 60,701,196,392.85/278,670.90
  6. Step 6: Final answer
    x = 217,823.95

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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.