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Finding the Fourth Proportional to 270,002.70, 405,004.05 and 256,880.70

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Solution

The fourth proportional to 270,002.70, 405,004.05 and 256,880.70 is: 385,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,002.70 : 405,004.05 = 256,880.70 : x
  2. Step 2: Convert to fraction form
    270,002.70/405,004.05 = 256,880.70/x
  3. Step 3: Cross multiply
    270,002.70x = 405,004.05 × 256,880.70
  4. Step 4: Simplify right side
    270,002.70x = 104,037,723,866.84
  5. Step 5: Solve for x
    x = 104,037,723,866.84/270,002.70
  6. Step 6: Final answer
    x = 385,321.05

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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.