Home / 263,225.20-394,319.40-157,730.80

Finding the Fourth Proportional to 263,225.20, 394,319.40 and 157,730.80

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Solution

The fourth proportional to 263,225.20, 394,319.40 and 157,730.80 is: 236,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,225.20 : 394,319.40 = 157,730.80 : x
  2. Step 2: Convert to fraction form
    263,225.20/394,319.40 = 157,730.80/x
  3. Step 3: Cross multiply
    263,225.20x = 394,319.40 × 157,730.80
  4. Step 4: Simplify right side
    263,225.20x = 62,196,314,417.52
  5. Step 5: Solve for x
    x = 62,196,314,417.52/263,225.20
  6. Step 6: Final answer
    x = 236,285.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.