Home / 352,031.80-528,047.70-211,948.60

Finding the Fourth Proportional to 352,031.80, 528,047.70 and 211,948.60

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Solution

The fourth proportional to 352,031.80, 528,047.70 and 211,948.60 is: 317,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,031.80 : 528,047.70 = 211,948.60 : x
  2. Step 2: Convert to fraction form
    352,031.80/528,047.70 = 211,948.60/x
  3. Step 3: Cross multiply
    352,031.80x = 528,047.70 × 211,948.60
  4. Step 4: Simplify right side
    352,031.80x = 111,918,970,748.22
  5. Step 5: Solve for x
    x = 111,918,970,748.22/352,031.80
  6. Step 6: Final answer
    x = 317,922.90

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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.