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Finding the Fourth Proportional to 545,474.21, 818,258.67 and 166,480.29

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Solution

The fourth proportional to 545,474.21, 818,258.67 and 166,480.29 is: 249,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,474.21 : 818,258.67 = 166,480.29 : x
  2. Step 2: Convert to fraction form
    545,474.21/818,258.67 = 166,480.29/x
  3. Step 3: Cross multiply
    545,474.21x = 818,258.67 × 166,480.29
  4. Step 4: Simplify right side
    545,474.21x = 136,223,940,676.61
  5. Step 5: Solve for x
    x = 136,223,940,676.61/545,474.21
  6. Step 6: Final answer
    x = 249,734.89

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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.