Home / 354,531.20-531,796.80-323,427.20

Finding the Fourth Proportional to 354,531.20, 531,796.80 and 323,427.20

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Solution

The fourth proportional to 354,531.20, 531,796.80 and 323,427.20 is: 485,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,531.20 : 531,796.80 = 323,427.20 : x
  2. Step 2: Convert to fraction form
    354,531.20/531,796.80 = 323,427.20/x
  3. Step 3: Cross multiply
    354,531.20x = 531,796.80 × 323,427.20
  4. Step 4: Simplify right side
    354,531.20x = 171,997,549,992.96
  5. Step 5: Solve for x
    x = 171,997,549,992.96/354,531.20
  6. Step 6: Final answer
    x = 485,140.80

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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.