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Finding the Fourth Proportional to 321,029.68, 481,576.37 and 118,678.80

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Solution

The fourth proportional to 321,029.68, 481,576.37 and 118,678.80 is: 178,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,029.68 : 481,576.37 = 118,678.80 : x
  2. Step 2: Convert to fraction form
    321,029.68/481,576.37 = 118,678.80/x
  3. Step 3: Cross multiply
    321,029.68x = 481,576.37 × 118,678.80
  4. Step 4: Simplify right side
    321,029.68x = 57,152,904,203.61
  5. Step 5: Solve for x
    x = 57,152,904,203.61/321,029.68
  6. Step 6: Final answer
    x = 178,029.97

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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.