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Finding the Fourth Proportional to 358,745.46, 538,118.19 and 312,556.02

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Solution

The fourth proportional to 358,745.46, 538,118.19 and 312,556.02 is: 468,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,745.46 : 538,118.19 = 312,556.02 : x
  2. Step 2: Convert to fraction form
    358,745.46/538,118.19 = 312,556.02/x
  3. Step 3: Cross multiply
    358,745.46x = 538,118.19 × 312,556.02
  4. Step 4: Simplify right side
    358,745.46x = 168,192,079,756.00
  5. Step 5: Solve for x
    x = 168,192,079,756.00/358,745.46
  6. Step 6: Final answer
    x = 468,834.03

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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.