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Finding the Fourth Proportional to 664,900.68, 997,335.18 and 166,264.20

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Solution

The fourth proportional to 664,900.68, 997,335.18 and 166,264.20 is: 249,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,900.68 : 997,335.18 = 166,264.20 : x
  2. Step 2: Convert to fraction form
    664,900.68/997,335.18 = 166,264.20/x
  3. Step 3: Cross multiply
    664,900.68x = 997,335.18 × 166,264.20
  4. Step 4: Simplify right side
    664,900.68x = 165,821,135,834.56
  5. Step 5: Solve for x
    x = 165,821,135,834.56/664,900.68
  6. Step 6: Final answer
    x = 249,392.34

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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.