Home / 280,566.21-387,183.38-153,241.77

Finding the Fourth Proportional to 280,566.21, 387,183.38 and 153,241.77

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Solution

The fourth proportional to 280,566.21, 387,183.38 and 153,241.77 is: 211,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,566.21 : 387,183.38 = 153,241.77 : x
  2. Step 2: Convert to fraction form
    280,566.21/387,183.38 = 153,241.77/x
  3. Step 3: Cross multiply
    280,566.21x = 387,183.38 × 153,241.77
  4. Step 4: Simplify right side
    280,566.21x = 59,332,665,699.57
  5. Step 5: Solve for x
    x = 59,332,665,699.57/280,566.21
  6. Step 6: Final answer
    x = 211,474.74

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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.