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Finding the Fourth Proportional to 354,676.40, 532,014.60 and 221,706.80

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Solution

The fourth proportional to 354,676.40, 532,014.60 and 221,706.80 is: 332,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,676.40 : 532,014.60 = 221,706.80 : x
  2. Step 2: Convert to fraction form
    354,676.40/532,014.60 = 221,706.80/x
  3. Step 3: Cross multiply
    354,676.40x = 532,014.60 × 221,706.80
  4. Step 4: Simplify right side
    354,676.40x = 117,951,254,519.28
  5. Step 5: Solve for x
    x = 117,951,254,519.28/354,676.40
  6. Step 6: Final answer
    x = 332,560.20

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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.