Home / 361,447.13-498,788.55-208,485.63

Finding the Fourth Proportional to 361,447.13, 498,788.55 and 208,485.63

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Solution

The fourth proportional to 361,447.13, 498,788.55 and 208,485.63 is: 287,705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,447.13 : 498,788.55 = 208,485.63 : x
  2. Step 2: Convert to fraction form
    361,447.13/498,788.55 = 208,485.63/x
  3. Step 3: Cross multiply
    361,447.13x = 498,788.55 × 208,485.63
  4. Step 4: Simplify right side
    361,447.13x = 103,990,245,083.54
  5. Step 5: Solve for x
    x = 103,990,245,083.54/361,447.13
  6. Step 6: Final answer
    x = 287,705.27

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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.