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Finding the Fourth Proportional to 496,492.50, 685,170.60 and 270,138

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Solution

The fourth proportional to 496,492.50, 685,170.60 and 270,138 is: 372,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,492.50 : 685,170.60 = 270,138 : x
  2. Step 2: Convert to fraction form
    496,492.50/685,170.60 = 270,138/x
  3. Step 3: Cross multiply
    496,492.50x = 685,170.60 × 270,138
  4. Step 4: Simplify right side
    496,492.50x = 185,090,615,542.80
  5. Step 5: Solve for x
    x = 185,090,615,542.80/496,492.50
  6. Step 6: Final answer
    x = 372,796.40

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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.