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Finding the Fourth Proportional to 347,771.88, 479,696.58 and 272,189.16

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Solution

The fourth proportional to 347,771.88, 479,696.58 and 272,189.16 is: 375,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,771.88 : 479,696.58 = 272,189.16 : x
  2. Step 2: Convert to fraction form
    347,771.88/479,696.58 = 272,189.16/x
  3. Step 3: Cross multiply
    347,771.88x = 479,696.58 × 272,189.16
  4. Step 4: Simplify right side
    347,771.88x = 130,568,209,165.07
  5. Step 5: Solve for x
    x = 130,568,209,165.07/347,771.88
  6. Step 6: Final answer
    x = 375,442.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.