Home / 352,914.60-528,680.70-212,255.40

Finding the Fourth Proportional to 352,914.60, 528,680.70 and 212,255.40

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Solution

The fourth proportional to 352,914.60, 528,680.70 and 212,255.40 is: 317,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,914.60 : 528,680.70 = 212,255.40 : x
  2. Step 2: Convert to fraction form
    352,914.60/528,680.70 = 212,255.40/x
  3. Step 3: Cross multiply
    352,914.60x = 528,680.70 × 212,255.40
  4. Step 4: Simplify right side
    352,914.60x = 112,215,333,450.78
  5. Step 5: Solve for x
    x = 112,215,333,450.78/352,914.60
  6. Step 6: Final answer
    x = 317,967.39

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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.