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Finding the Fourth Proportional to 354,677.20, 532,015.80 and 221,966.80

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Solution

The fourth proportional to 354,677.20, 532,015.80 and 221,966.80 is: 332,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,677.20 : 532,015.80 = 221,966.80 : x
  2. Step 2: Convert to fraction form
    354,677.20/532,015.80 = 221,966.80/x
  3. Step 3: Cross multiply
    354,677.20x = 532,015.80 × 221,966.80
  4. Step 4: Simplify right side
    354,677.20x = 118,089,844,675.44
  5. Step 5: Solve for x
    x = 118,089,844,675.44/354,677.20
  6. Step 6: Final answer
    x = 332,950.20

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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.