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Finding the Fourth Proportional to 248,410.97, 372,622.58 and 90,639.40

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Solution

The fourth proportional to 248,410.97, 372,622.58 and 90,639.40 is: 135,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,410.97 : 372,622.58 = 90,639.40 : x
  2. Step 2: Convert to fraction form
    248,410.97/372,622.58 = 90,639.40/x
  3. Step 3: Cross multiply
    248,410.97x = 372,622.58 × 90,639.40
  4. Step 4: Simplify right side
    248,410.97x = 33,774,287,077.65
  5. Step 5: Solve for x
    x = 33,774,287,077.65/248,410.97
  6. Step 6: Final answer
    x = 135,961.33

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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.