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Finding the Fourth Proportional to 378,249.60, 566,596.80 and 260,054.40

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Solution

The fourth proportional to 378,249.60, 566,596.80 and 260,054.40 is: 389,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,249.60 : 566,596.80 = 260,054.40 : x
  2. Step 2: Convert to fraction form
    378,249.60/566,596.80 = 260,054.40/x
  3. Step 3: Cross multiply
    378,249.60x = 566,596.80 × 260,054.40
  4. Step 4: Simplify right side
    378,249.60x = 147,345,990,865.92
  5. Step 5: Solve for x
    x = 147,345,990,865.92/378,249.60
  6. Step 6: Final answer
    x = 389,546.98

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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.