Home / 438,039.20-656,799.60-228,087.20

Finding the Fourth Proportional to 438,039.20, 656,799.60 and 228,087.20

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Solution

The fourth proportional to 438,039.20, 656,799.60 and 228,087.20 is: 341,995.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,039.20 : 656,799.60 = 228,087.20 : x
  2. Step 2: Convert to fraction form
    438,039.20/656,799.60 = 228,087.20/x
  3. Step 3: Cross multiply
    438,039.20x = 656,799.60 × 228,087.20
  4. Step 4: Simplify right side
    438,039.20x = 149,807,581,725.12
  5. Step 5: Solve for x
    x = 149,807,581,725.12/438,039.20
  6. Step 6: Final answer
    x = 341,995.83

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1.5x scale

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.