Home / 352,569.20-528,659.40-141,969.20

Finding the Fourth Proportional to 352,569.20, 528,659.40 and 141,969.20

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Solution

The fourth proportional to 352,569.20, 528,659.40 and 141,969.20 is: 212,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,569.20 : 528,659.40 = 141,969.20 : x
  2. Step 2: Convert to fraction form
    352,569.20/528,659.40 = 141,969.20/x
  3. Step 3: Cross multiply
    352,569.20x = 528,659.40 × 141,969.20
  4. Step 4: Simplify right side
    352,569.20x = 75,053,352,090.48
  5. Step 5: Solve for x
    x = 75,053,352,090.48/352,569.20
  6. Step 6: Final answer
    x = 212,875.52

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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.