Home / 268,890.80-403,336.20-248,615.60

Finding the Fourth Proportional to 268,890.80, 403,336.20 and 248,615.60

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Solution

The fourth proportional to 268,890.80, 403,336.20 and 248,615.60 is: 372,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,890.80 : 403,336.20 = 248,615.60 : x
  2. Step 2: Convert to fraction form
    268,890.80/403,336.20 = 248,615.60/x
  3. Step 3: Cross multiply
    268,890.80x = 403,336.20 × 248,615.60
  4. Step 4: Simplify right side
    268,890.80x = 100,275,671,364.72
  5. Step 5: Solve for x
    x = 100,275,671,364.72/268,890.80
  6. Step 6: Final answer
    x = 372,923.40

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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.