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Finding the Fourth Proportional to 315,093.36, 434,811.48 and 179,108.40

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Solution

The fourth proportional to 315,093.36, 434,811.48 and 179,108.40 is: 247,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,093.36 : 434,811.48 = 179,108.40 : x
  2. Step 2: Convert to fraction form
    315,093.36/434,811.48 = 179,108.40/x
  3. Step 3: Cross multiply
    315,093.36x = 434,811.48 × 179,108.40
  4. Step 4: Simplify right side
    315,093.36x = 77,878,388,484.43
  5. Step 5: Solve for x
    x = 77,878,388,484.43/315,093.36
  6. Step 6: Final answer
    x = 247,159.73

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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.