Home / 386,688.29-533,693.97-225,543.33

Finding the Fourth Proportional to 386,688.29, 533,693.97 and 225,543.33

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Solution

The fourth proportional to 386,688.29, 533,693.97 and 225,543.33 is: 311,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,688.29 : 533,693.97 = 225,543.33 : x
  2. Step 2: Convert to fraction form
    386,688.29/533,693.97 = 225,543.33/x
  3. Step 3: Cross multiply
    386,688.29x = 533,693.97 × 225,543.33
  4. Step 4: Simplify right side
    386,688.29x = 120,371,115,194.72
  5. Step 5: Solve for x
    x = 120,371,115,194.72/386,688.29
  6. Step 6: Final answer
    x = 311,287.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.