Home / 331,803.10-457,868.55-188,543.26

Finding the Fourth Proportional to 331,803.10, 457,868.55 and 188,543.26

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Solution

The fourth proportional to 331,803.10, 457,868.55 and 188,543.26 is: 260,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,803.10 : 457,868.55 = 188,543.26 : x
  2. Step 2: Convert to fraction form
    331,803.10/457,868.55 = 188,543.26/x
  3. Step 3: Cross multiply
    331,803.10x = 457,868.55 × 188,543.26
  4. Step 4: Simplify right side
    331,803.10x = 86,328,029,068.47
  5. Step 5: Solve for x
    x = 86,328,029,068.47/331,803.10
  6. Step 6: Final answer
    x = 260,178.49

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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.