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Finding the Fourth Proportional to 335,430.40, 503,145.60 and 298,105.60

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Solution

The fourth proportional to 335,430.40, 503,145.60 and 298,105.60 is: 447,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,430.40 : 503,145.60 = 298,105.60 : x
  2. Step 2: Convert to fraction form
    335,430.40/503,145.60 = 298,105.60/x
  3. Step 3: Cross multiply
    335,430.40x = 503,145.60 × 298,105.60
  4. Step 4: Simplify right side
    335,430.40x = 149,990,520,975.36
  5. Step 5: Solve for x
    x = 149,990,520,975.36/335,430.40
  6. Step 6: Final answer
    x = 447,158.40

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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.