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Finding the Fourth Proportional to 355,671.33, 490,601.95 and 248,202.15

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Solution

The fourth proportional to 355,671.33, 490,601.95 and 248,202.15 is: 342,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,671.33 : 490,601.95 = 248,202.15 : x
  2. Step 2: Convert to fraction form
    355,671.33/490,601.95 = 248,202.15/x
  3. Step 3: Cross multiply
    355,671.33x = 490,601.95 × 248,202.15
  4. Step 4: Simplify right side
    355,671.33x = 121,768,458,784.19
  5. Step 5: Solve for x
    x = 121,768,458,784.19/355,671.33
  6. Step 6: Final answer
    x = 342,362.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.