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Finding the Fourth Proportional to 352,638.60, 486,647.06 and 199,672.76

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Solution

The fourth proportional to 352,638.60, 486,647.06 and 199,672.76 is: 275,551.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,638.60 : 486,647.06 = 199,672.76 : x
  2. Step 2: Convert to fraction form
    352,638.60/486,647.06 = 199,672.76/x
  3. Step 3: Cross multiply
    352,638.60x = 486,647.06 × 199,672.76
  4. Step 4: Simplify right side
    352,638.60x = 97,170,159,471.34
  5. Step 5: Solve for x
    x = 97,170,159,471.34/352,638.60
  6. Step 6: Final answer
    x = 275,551.68

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1.5x scale

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.