Home / 389,664.96-537,737.76-219,935.04

Finding the Fourth Proportional to 389,664.96, 537,737.76 and 219,935.04

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Solution

The fourth proportional to 389,664.96, 537,737.76 and 219,935.04 is: 303,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,664.96 : 537,737.76 = 219,935.04 : x
  2. Step 2: Convert to fraction form
    389,664.96/537,737.76 = 219,935.04/x
  3. Step 3: Cross multiply
    389,664.96x = 537,737.76 × 219,935.04
  4. Step 4: Simplify right side
    389,664.96x = 118,267,375,755.11
  5. Step 5: Solve for x
    x = 118,267,375,755.11/389,664.96
  6. Step 6: Final answer
    x = 303,510.42

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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.