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Finding the Fourth Proportional to 664,064.40, 996,096.60 and 165,428.40

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Solution

The fourth proportional to 664,064.40, 996,096.60 and 165,428.40 is: 248,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,064.40 : 996,096.60 = 165,428.40 : x
  2. Step 2: Convert to fraction form
    664,064.40/996,096.60 = 165,428.40/x
  3. Step 3: Cross multiply
    664,064.40x = 996,096.60 × 165,428.40
  4. Step 4: Simplify right side
    664,064.40x = 164,782,666,783.44
  5. Step 5: Solve for x
    x = 164,782,666,783.44/664,064.40
  6. Step 6: Final answer
    x = 248,142.60

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Similar ratio
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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.