Home / 465,306.07-642,108.39-258,573.76

Finding the Fourth Proportional to 465,306.07, 642,108.39 and 258,573.76

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Solution

The fourth proportional to 465,306.07, 642,108.39 and 258,573.76 is: 356,824.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,306.07 : 642,108.39 = 258,573.76 : x
  2. Step 2: Convert to fraction form
    465,306.07/642,108.39 = 258,573.76/x
  3. Step 3: Cross multiply
    465,306.07x = 642,108.39 × 258,573.76
  4. Step 4: Simplify right side
    465,306.07x = 166,032,380,729.85
  5. Step 5: Solve for x
    x = 166,032,380,729.85/465,306.07
  6. Step 6: Final answer
    x = 356,824.02

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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.