Home / 389,829.96-537,968.34-228,687.66

Finding the Fourth Proportional to 389,829.96, 537,968.34 and 228,687.66

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Solution

The fourth proportional to 389,829.96, 537,968.34 and 228,687.66 is: 315,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,829.96 : 537,968.34 = 228,687.66 : x
  2. Step 2: Convert to fraction form
    389,829.96/537,968.34 = 228,687.66/x
  3. Step 3: Cross multiply
    389,829.96x = 537,968.34 × 228,687.66
  4. Step 4: Simplify right side
    389,829.96x = 123,026,720,828.68
  5. Step 5: Solve for x
    x = 123,026,720,828.68/389,829.96
  6. Step 6: Final answer
    x = 315,590.73

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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.