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Finding the Fourth Proportional to 383,270.72, 525,083.42 and 368,905.16

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Solution

The fourth proportional to 383,270.72, 525,083.42 and 368,905.16 is: 505,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,270.72 : 525,083.42 = 368,905.16 : x
  2. Step 2: Convert to fraction form
    383,270.72/525,083.42 = 368,905.16/x
  3. Step 3: Cross multiply
    383,270.72x = 525,083.42 × 368,905.16
  4. Step 4: Simplify right side
    383,270.72x = 193,705,983,068.45
  5. Step 5: Solve for x
    x = 193,705,983,068.45/383,270.72
  6. Step 6: Final answer
    x = 505,402.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.