Home / 353,081.20-529,427.40-142,481.20

Finding the Fourth Proportional to 353,081.20, 529,427.40 and 142,481.20

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Solution

The fourth proportional to 353,081.20, 529,427.40 and 142,481.20 is: 213,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,081.20 : 529,427.40 = 142,481.20 : x
  2. Step 2: Convert to fraction form
    353,081.20/529,427.40 = 142,481.20/x
  3. Step 3: Cross multiply
    353,081.20x = 529,427.40 × 142,481.20
  4. Step 4: Simplify right side
    353,081.20x = 75,433,451,264.88
  5. Step 5: Solve for x
    x = 75,433,451,264.88/353,081.20
  6. Step 6: Final answer
    x = 213,643.35

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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.