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Finding the Fourth Proportional to 252,989.37, 379,484.06 and 84,478.59

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Solution

The fourth proportional to 252,989.37, 379,484.06 and 84,478.59 is: 126,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,989.37 : 379,484.06 = 84,478.59 : x
  2. Step 2: Convert to fraction form
    252,989.37/379,484.06 = 84,478.59/x
  3. Step 3: Cross multiply
    252,989.37x = 379,484.06 × 84,478.59
  4. Step 4: Simplify right side
    252,989.37x = 32,058,277,893.88
  5. Step 5: Solve for x
    x = 32,058,277,893.88/252,989.37
  6. Step 6: Final answer
    x = 126,717.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.