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Finding the Fourth Proportional to 298,701.76, 412,204.08 and 171,374.56

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Solution

The fourth proportional to 298,701.76, 412,204.08 and 171,374.56 is: 236,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,701.76 : 412,204.08 = 171,374.56 : x
  2. Step 2: Convert to fraction form
    298,701.76/412,204.08 = 171,374.56/x
  3. Step 3: Cross multiply
    298,701.76x = 412,204.08 × 171,374.56
  4. Step 4: Simplify right side
    298,701.76x = 70,641,292,840.20
  5. Step 5: Solve for x
    x = 70,641,292,840.20/298,701.76
  6. Step 6: Final answer
    x = 236,494.40

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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.