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Finding the Fourth Proportional to 274,473.70, 411,480.15 and 143,145.70

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Solution

The fourth proportional to 274,473.70, 411,480.15 and 143,145.70 is: 214,598.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,473.70 : 411,480.15 = 143,145.70 : x
  2. Step 2: Convert to fraction form
    274,473.70/411,480.15 = 143,145.70/x
  3. Step 3: Cross multiply
    274,473.70x = 411,480.15 × 143,145.70
  4. Step 4: Simplify right side
    274,473.70x = 58,901,614,107.86
  5. Step 5: Solve for x
    x = 58,901,614,107.86/274,473.70
  6. Step 6: Final answer
    x = 214,598.39

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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.