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Finding the Fourth Proportional to 354,550.58, 531,858.87 and 141,267.05

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Solution

The fourth proportional to 354,550.58, 531,858.87 and 141,267.05 is: 211,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,550.58 : 531,858.87 = 141,267.05 : x
  2. Step 2: Convert to fraction form
    354,550.58/531,858.87 = 141,267.05/x
  3. Step 3: Cross multiply
    354,550.58x = 531,858.87 × 141,267.05
  4. Step 4: Simplify right side
    354,550.58x = 75,134,130,921.94
  5. Step 5: Solve for x
    x = 75,134,130,921.94/354,550.58
  6. Step 6: Final answer
    x = 211,913.72

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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.