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Finding the Fourth Proportional to 347,580.28, 479,712.08 and 220,267.48

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Solution

The fourth proportional to 347,580.28, 479,712.08 and 220,267.48 is: 304,001.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,580.28 : 479,712.08 = 220,267.48 : x
  2. Step 2: Convert to fraction form
    347,580.28/479,712.08 = 220,267.48/x
  3. Step 3: Cross multiply
    347,580.28x = 479,712.08 × 220,267.48
  4. Step 4: Simplify right side
    347,580.28x = 105,664,970,987.16
  5. Step 5: Solve for x
    x = 105,664,970,987.16/347,580.28
  6. Step 6: Final answer
    x = 304,001.63

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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.