Home / 248,613.60-372,920.40-90,821.55

Finding the Fourth Proportional to 248,613.60, 372,920.40 and 90,821.55

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Solution

The fourth proportional to 248,613.60, 372,920.40 and 90,821.55 is: 136,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,613.60 : 372,920.40 = 90,821.55 : x
  2. Step 2: Convert to fraction form
    248,613.60/372,920.40 = 90,821.55/x
  3. Step 3: Cross multiply
    248,613.60x = 372,920.40 × 90,821.55
  4. Step 4: Simplify right side
    248,613.60x = 33,869,208,754.62
  5. Step 5: Solve for x
    x = 33,869,208,754.62/248,613.60
  6. Step 6: Final answer
    x = 136,232.33

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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.