Home / 248,683.20-372,981.60-90,830.40

Finding the Fourth Proportional to 248,683.20, 372,981.60 and 90,830.40

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Solution

The fourth proportional to 248,683.20, 372,981.60 and 90,830.40 is: 136,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,683.20 : 372,981.60 = 90,830.40 : x
  2. Step 2: Convert to fraction form
    248,683.20/372,981.60 = 90,830.40/x
  3. Step 3: Cross multiply
    248,683.20x = 372,981.60 × 90,830.40
  4. Step 4: Simplify right side
    248,683.20x = 33,878,067,920.64
  5. Step 5: Solve for x
    x = 33,878,067,920.64/248,683.20
  6. Step 6: Final answer
    x = 136,229.82

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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.