Home / 353,214.40-529,821.60-211,496.80

Finding the Fourth Proportional to 353,214.40, 529,821.60 and 211,496.80

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Solution

The fourth proportional to 353,214.40, 529,821.60 and 211,496.80 is: 317,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,214.40 : 529,821.60 = 211,496.80 : x
  2. Step 2: Convert to fraction form
    353,214.40/529,821.60 = 211,496.80/x
  3. Step 3: Cross multiply
    353,214.40x = 529,821.60 × 211,496.80
  4. Step 4: Simplify right side
    353,214.40x = 112,055,572,970.88
  5. Step 5: Solve for x
    x = 112,055,572,970.88/353,214.40
  6. Step 6: Final answer
    x = 317,245.20

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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.