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Finding the Fourth Proportional to 285,014.70, 393,062.22 and 255,927.60

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Solution

The fourth proportional to 285,014.70, 393,062.22 and 255,927.60 is: 352,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,014.70 : 393,062.22 = 255,927.60 : x
  2. Step 2: Convert to fraction form
    285,014.70/393,062.22 = 255,927.60/x
  3. Step 3: Cross multiply
    285,014.70x = 393,062.22 × 255,927.60
  4. Step 4: Simplify right side
    285,014.70x = 100,595,470,615.27
  5. Step 5: Solve for x
    x = 100,595,470,615.27/285,014.70
  6. Step 6: Final answer
    x = 352,948.36

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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.