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Finding the Fourth Proportional to 253,000.60, 379,371.94 and 84,460.34

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Solution

The fourth proportional to 253,000.60, 379,371.94 and 84,460.34 is: 126,647.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,000.60 : 379,371.94 = 84,460.34 : x
  2. Step 2: Convert to fraction form
    253,000.60/379,371.94 = 84,460.34/x
  3. Step 3: Cross multiply
    253,000.60x = 379,371.94 × 84,460.34
  4. Step 4: Simplify right side
    253,000.60x = 32,041,883,776.14
  5. Step 5: Solve for x
    x = 32,041,883,776.14/253,000.60
  6. Step 6: Final answer
    x = 126,647.46

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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.