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Finding the Fourth Proportional to 270,925.60, 405,999.60 and 199,289.20

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Solution

The fourth proportional to 270,925.60, 405,999.60 and 199,289.20 is: 298,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,925.60 : 405,999.60 = 199,289.20 : x
  2. Step 2: Convert to fraction form
    270,925.60/405,999.60 = 199,289.20/x
  3. Step 3: Cross multiply
    270,925.60x = 405,999.60 × 199,289.20
  4. Step 4: Simplify right side
    270,925.60x = 80,911,335,484.32
  5. Step 5: Solve for x
    x = 80,911,335,484.32/270,925.60
  6. Step 6: Final answer
    x = 298,647.80

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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.