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Finding the Fourth Proportional to 315,026.48, 434,747.04 and 171,794.36

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Solution

The fourth proportional to 315,026.48, 434,747.04 and 171,794.36 is: 237,081.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,026.48 : 434,747.04 = 171,794.36 : x
  2. Step 2: Convert to fraction form
    315,026.48/434,747.04 = 171,794.36/x
  3. Step 3: Cross multiply
    315,026.48x = 434,747.04 × 171,794.36
  4. Step 4: Simplify right side
    315,026.48x = 74,687,089,498.69
  5. Step 5: Solve for x
    x = 74,687,089,498.69/315,026.48
  6. Step 6: Final answer
    x = 237,081.94

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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.