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Finding the Fourth Proportional to 258,863.70, 388,237.02 and 101,010.90

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Solution

The fourth proportional to 258,863.70, 388,237.02 and 101,010.90 is: 151,493.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,863.70 : 388,237.02 = 101,010.90 : x
  2. Step 2: Convert to fraction form
    258,863.70/388,237.02 = 101,010.90/x
  3. Step 3: Cross multiply
    258,863.70x = 388,237.02 × 101,010.90
  4. Step 4: Simplify right side
    258,863.70x = 39,216,170,803.52
  5. Step 5: Solve for x
    x = 39,216,170,803.52/258,863.70
  6. Step 6: Final answer
    x = 151,493.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.