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Finding the Fourth Proportional to 354,386.70, 531,584.10 and 88,147.80

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Solution

The fourth proportional to 354,386.70, 531,584.10 and 88,147.80 is: 132,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,386.70 : 531,584.10 = 88,147.80 : x
  2. Step 2: Convert to fraction form
    354,386.70/531,584.10 = 88,147.80/x
  3. Step 3: Cross multiply
    354,386.70x = 531,584.10 × 88,147.80
  4. Step 4: Simplify right side
    354,386.70x = 46,857,968,929.98
  5. Step 5: Solve for x
    x = 46,857,968,929.98/354,386.70
  6. Step 6: Final answer
    x = 132,222.71

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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.