Home / 331,640.19-457,607.43-186,426.63

Finding the Fourth Proportional to 331,640.19, 457,607.43 and 186,426.63

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Solution

The fourth proportional to 331,640.19, 457,607.43 and 186,426.63 is: 257,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,640.19 : 457,607.43 = 186,426.63 : x
  2. Step 2: Convert to fraction form
    331,640.19/457,607.43 = 186,426.63/x
  3. Step 3: Cross multiply
    331,640.19x = 457,607.43 × 186,426.63
  4. Step 4: Simplify right side
    331,640.19x = 85,310,211,037.86
  5. Step 5: Solve for x
    x = 85,310,211,037.86/331,640.19
  6. Step 6: Final answer
    x = 257,237.25

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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.