Home / 228,933.60-343,432.80-71,145.60

Finding the Fourth Proportional to 228,933.60, 343,432.80 and 71,145.60

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Solution

The fourth proportional to 228,933.60, 343,432.80 and 71,145.60 is: 106,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,933.60 : 343,432.80 = 71,145.60 : x
  2. Step 2: Convert to fraction form
    228,933.60/343,432.80 = 71,145.60/x
  3. Step 3: Cross multiply
    228,933.60x = 343,432.80 × 71,145.60
  4. Step 4: Simplify right side
    228,933.60x = 24,433,732,615.68
  5. Step 5: Solve for x
    x = 24,433,732,615.68/228,933.60
  6. Step 6: Final answer
    x = 106,728.47

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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.