Home / 389,849.77-537,997.17-228,707.56

Finding the Fourth Proportional to 389,849.77, 537,997.17 and 228,707.56

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Solution

The fourth proportional to 389,849.77, 537,997.17 and 228,707.56 is: 315,619.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,849.77 : 537,997.17 = 228,707.56 : x
  2. Step 2: Convert to fraction form
    389,849.77/537,997.17 = 228,707.56/x
  3. Step 3: Cross multiply
    389,849.77x = 537,997.17 × 228,707.56
  4. Step 4: Simplify right side
    389,849.77x = 123,044,020,037.61
  5. Step 5: Solve for x
    x = 123,044,020,037.61/389,849.77
  6. Step 6: Final answer
    x = 315,619.07

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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.