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Finding the Fourth Proportional to 315,755.93, 435,722.27 and 179,803.77

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Solution

The fourth proportional to 315,755.93, 435,722.27 and 179,803.77 is: 248,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,755.93 : 435,722.27 = 179,803.77 : x
  2. Step 2: Convert to fraction form
    315,755.93/435,722.27 = 179,803.77/x
  3. Step 3: Cross multiply
    315,755.93x = 435,722.27 × 179,803.77
  4. Step 4: Simplify right side
    315,755.93x = 78,344,505,919.94
  5. Step 5: Solve for x
    x = 78,344,505,919.94/315,755.93
  6. Step 6: Final answer
    x = 248,117.29

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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.