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Finding the Fourth Proportional to 664,293.21, 996,597.99 and 215,014.16

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Solution

The fourth proportional to 664,293.21, 996,597.99 and 215,014.16 is: 322,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,293.21 : 996,597.99 = 215,014.16 : x
  2. Step 2: Convert to fraction form
    664,293.21/996,597.99 = 215,014.16/x
  3. Step 3: Cross multiply
    664,293.21x = 996,597.99 × 215,014.16
  4. Step 4: Simplify right side
    664,293.21x = 214,282,674,694.55
  5. Step 5: Solve for x
    x = 214,282,674,694.55/664,293.21
  6. Step 6: Final answer
    x = 322,572.43

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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.