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Finding the Fourth Proportional to 354,369.60, 531,541.60 and 144,001.60

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Solution

The fourth proportional to 354,369.60, 531,541.60 and 144,001.60 is: 215,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,369.60 : 531,541.60 = 144,001.60 : x
  2. Step 2: Convert to fraction form
    354,369.60/531,541.60 = 144,001.60/x
  3. Step 3: Cross multiply
    354,369.60x = 531,541.60 × 144,001.60
  4. Step 4: Simplify right side
    354,369.60x = 76,542,840,866.56
  5. Step 5: Solve for x
    x = 76,542,840,866.56/354,369.60
  6. Step 6: Final answer
    x = 215,997.20

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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.