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Finding the Fourth Proportional to 259,263.18, 388,890.81 and 158,091.03

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Solution

The fourth proportional to 259,263.18, 388,890.81 and 158,091.03 is: 237,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,263.18 : 388,890.81 = 158,091.03 : x
  2. Step 2: Convert to fraction form
    259,263.18/388,890.81 = 158,091.03/x
  3. Step 3: Cross multiply
    259,263.18x = 388,890.81 × 158,091.03
  4. Step 4: Simplify right side
    259,263.18x = 61,480,148,710.43
  5. Step 5: Solve for x
    x = 61,480,148,710.43/259,263.18
  6. Step 6: Final answer
    x = 237,134.13

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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.