Home / 389,373.76-537,335.04-219,607.36

Finding the Fourth Proportional to 389,373.76, 537,335.04 and 219,607.36

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Solution

The fourth proportional to 389,373.76, 537,335.04 and 219,607.36 is: 303,057.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,373.76 : 537,335.04 = 219,607.36 : x
  2. Step 2: Convert to fraction form
    389,373.76/537,335.04 = 219,607.36/x
  3. Step 3: Cross multiply
    389,373.76x = 537,335.04 × 219,607.36
  4. Step 4: Simplify right side
    389,373.76x = 118,002,729,569.89
  5. Step 5: Solve for x
    x = 118,002,729,569.89/389,373.76
  6. Step 6: Final answer
    x = 303,057.73

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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.