Home / 437,961.20-656,963.40-228,009.20

Finding the Fourth Proportional to 437,961.20, 656,963.40 and 228,009.20

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Solution

The fourth proportional to 437,961.20, 656,963.40 and 228,009.20 is: 342,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,961.20 : 656,963.40 = 228,009.20 : x
  2. Step 2: Convert to fraction form
    437,961.20/656,963.40 = 228,009.20/x
  3. Step 3: Cross multiply
    437,961.20x = 656,963.40 × 228,009.20
  4. Step 4: Simplify right side
    437,961.20x = 149,793,699,263.28
  5. Step 5: Solve for x
    x = 149,793,699,263.28/437,961.20
  6. Step 6: Final answer
    x = 342,025.05

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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.