Home / 353,060.40-529,720.20-142,719.60

Finding the Fourth Proportional to 353,060.40, 529,720.20 and 142,719.60

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Solution

The fourth proportional to 353,060.40, 529,720.20 and 142,719.60 is: 214,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,060.40 : 529,720.20 = 142,719.60 : x
  2. Step 2: Convert to fraction form
    353,060.40/529,720.20 = 142,719.60/x
  3. Step 3: Cross multiply
    353,060.40x = 529,720.20 × 142,719.60
  4. Step 4: Simplify right side
    353,060.40x = 75,601,455,055.92
  5. Step 5: Solve for x
    x = 75,601,455,055.92/353,060.40
  6. Step 6: Final answer
    x = 214,131.79

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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.