Home / 352,109.40-528,941.70-338,890.20

Finding the Fourth Proportional to 352,109.40, 528,941.70 and 338,890.20

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Solution

The fourth proportional to 352,109.40, 528,941.70 and 338,890.20 is: 509,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,109.40 : 528,941.70 = 338,890.20 : x
  2. Step 2: Convert to fraction form
    352,109.40/528,941.70 = 338,890.20/x
  3. Step 3: Cross multiply
    352,109.40x = 528,941.70 × 338,890.20
  4. Step 4: Simplify right side
    352,109.40x = 179,253,158,501.34
  5. Step 5: Solve for x
    x = 179,253,158,501.34/352,109.40
  6. Step 6: Final answer
    x = 509,083.71

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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.