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Finding the Fourth Proportional to 162,887.96, 243,217.90 and 145,911.44

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Solution

The fourth proportional to 162,887.96, 243,217.90 and 145,911.44 is: 217,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,887.96 : 243,217.90 = 145,911.44 : x
  2. Step 2: Convert to fraction form
    162,887.96/243,217.90 = 145,911.44/x
  3. Step 3: Cross multiply
    162,887.96x = 243,217.90 × 145,911.44
  4. Step 4: Simplify right side
    162,887.96x = 35,488,274,022.78
  5. Step 5: Solve for x
    x = 35,488,274,022.78/162,887.96
  6. Step 6: Final answer
    x = 217,869.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.