Home / 331,138.18-457,009.59-185,967.82

Finding the Fourth Proportional to 331,138.18, 457,009.59 and 185,967.82

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Solution

The fourth proportional to 331,138.18, 457,009.59 and 185,967.82 is: 256,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,138.18 : 457,009.59 = 185,967.82 : x
  2. Step 2: Convert to fraction form
    331,138.18/457,009.59 = 185,967.82/x
  3. Step 3: Cross multiply
    331,138.18x = 457,009.59 × 185,967.82
  4. Step 4: Simplify right side
    331,138.18x = 84,989,077,171.39
  5. Step 5: Solve for x
    x = 84,989,077,171.39/331,138.18
  6. Step 6: Final answer
    x = 256,657.44

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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.