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Finding the Fourth Proportional to 361,335.08, 498,629.21 and 208,379.72

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Solution

The fourth proportional to 361,335.08, 498,629.21 and 208,379.72 is: 287,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,335.08 : 498,629.21 = 208,379.72 : x
  2. Step 2: Convert to fraction form
    361,335.08/498,629.21 = 208,379.72/x
  3. Step 3: Cross multiply
    361,335.08x = 498,629.21 × 208,379.72
  4. Step 4: Simplify right side
    361,335.08x = 103,904,215,368.30
  5. Step 5: Solve for x
    x = 103,904,215,368.30/361,335.08
  6. Step 6: Final answer
    x = 287,556.40

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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.