Home / 354,712.20-532,068.30-221,742.60

Finding the Fourth Proportional to 354,712.20, 532,068.30 and 221,742.60

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Solution

The fourth proportional to 354,712.20, 532,068.30 and 221,742.60 is: 332,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,712.20 : 532,068.30 = 221,742.60 : x
  2. Step 2: Convert to fraction form
    354,712.20/532,068.30 = 221,742.60/x
  3. Step 3: Cross multiply
    354,712.20x = 532,068.30 × 221,742.60
  4. Step 4: Simplify right side
    354,712.20x = 117,982,208,219.58
  5. Step 5: Solve for x
    x = 117,982,208,219.58/354,712.20
  6. Step 6: Final answer
    x = 332,613.90

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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.