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Finding the Fourth Proportional to 315,094.36, 434,812.86 and 179,109.40

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Solution

The fourth proportional to 315,094.36, 434,812.86 and 179,109.40 is: 247,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,094.36 : 434,812.86 = 179,109.40 : x
  2. Step 2: Convert to fraction form
    315,094.36/434,812.86 = 179,109.40/x
  3. Step 3: Cross multiply
    315,094.36x = 434,812.86 × 179,109.40
  4. Step 4: Simplify right side
    315,094.36x = 77,879,070,466.88
  5. Step 5: Solve for x
    x = 77,879,070,466.88/315,094.36
  6. Step 6: Final answer
    x = 247,161.11

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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.