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Finding the Fourth Proportional to 221,457.90, 332,186.85 and 162,408.90

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Solution

The fourth proportional to 221,457.90, 332,186.85 and 162,408.90 is: 243,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,457.90 : 332,186.85 = 162,408.90 : x
  2. Step 2: Convert to fraction form
    221,457.90/332,186.85 = 162,408.90/x
  3. Step 3: Cross multiply
    221,457.90x = 332,186.85 × 162,408.90
  4. Step 4: Simplify right side
    221,457.90x = 53,950,100,902.97
  5. Step 5: Solve for x
    x = 53,950,100,902.97/221,457.90
  6. Step 6: Final answer
    x = 243,613.35

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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.