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Finding the Fourth Proportional to 525,391.37, 787,805.17 and 165,495

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Solution

The fourth proportional to 525,391.37, 787,805.17 and 165,495 is: 248,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,391.37 : 787,805.17 = 165,495 : x
  2. Step 2: Convert to fraction form
    525,391.37/787,805.17 = 165,495/x
  3. Step 3: Cross multiply
    525,391.37x = 787,805.17 × 165,495
  4. Step 4: Simplify right side
    525,391.37x = 130,377,816,609.15
  5. Step 5: Solve for x
    x = 130,377,816,609.15/525,391.37
  6. Step 6: Final answer
    x = 248,153.71

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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.