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Finding the Fourth Proportional to 289,496.18, 399,504.76 and 162,174.44

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Solution

The fourth proportional to 289,496.18, 399,504.76 and 162,174.44 is: 223,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,496.18 : 399,504.76 = 162,174.44 : x
  2. Step 2: Convert to fraction form
    289,496.18/399,504.76 = 162,174.44/x
  3. Step 3: Cross multiply
    289,496.18x = 399,504.76 × 162,174.44
  4. Step 4: Simplify right side
    289,496.18x = 64,789,460,730.33
  5. Step 5: Solve for x
    x = 64,789,460,730.33/289,496.18
  6. Step 6: Final answer
    x = 223,800.74

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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.