Home / 353,086.20-529,629.30-142,615.80

Finding the Fourth Proportional to 353,086.20, 529,629.30 and 142,615.80

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Solution

The fourth proportional to 353,086.20, 529,629.30 and 142,615.80 is: 213,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,086.20 : 529,629.30 = 142,615.80 : x
  2. Step 2: Convert to fraction form
    353,086.20/529,629.30 = 142,615.80/x
  3. Step 3: Cross multiply
    353,086.20x = 529,629.30 × 142,615.80
  4. Step 4: Simplify right side
    353,086.20x = 75,533,506,322.94
  5. Step 5: Solve for x
    x = 75,533,506,322.94/353,086.20
  6. Step 6: Final answer
    x = 213,923.70

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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.