Home / 352,135.40-528,008.70-115,356.20

Finding the Fourth Proportional to 352,135.40, 528,008.70 and 115,356.20

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Solution

The fourth proportional to 352,135.40, 528,008.70 and 115,356.20 is: 172,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,135.40 : 528,008.70 = 115,356.20 : x
  2. Step 2: Convert to fraction form
    352,135.40/528,008.70 = 115,356.20/x
  3. Step 3: Cross multiply
    352,135.40x = 528,008.70 × 115,356.20
  4. Step 4: Simplify right side
    352,135.40x = 60,909,077,198.94
  5. Step 5: Solve for x
    x = 60,909,077,198.94/352,135.40
  6. Step 6: Final answer
    x = 172,970.62

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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.