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Finding the Fourth Proportional to 248,140.80, 372,308.40 and 98,355.60

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Solution

The fourth proportional to 248,140.80, 372,308.40 and 98,355.60 is: 147,571.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,140.80 : 372,308.40 = 98,355.60 : x
  2. Step 2: Convert to fraction form
    248,140.80/372,308.40 = 98,355.60/x
  3. Step 3: Cross multiply
    248,140.80x = 372,308.40 × 98,355.60
  4. Step 4: Simplify right side
    248,140.80x = 36,618,616,067.04
  5. Step 5: Solve for x
    x = 36,618,616,067.04/248,140.80
  6. Step 6: Final answer
    x = 147,571.93

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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.