Home / 437,445.56-656,106.03-137,887.21

Finding the Fourth Proportional to 437,445.56, 656,106.03 and 137,887.21

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Solution

The fourth proportional to 437,445.56, 656,106.03 and 137,887.21 is: 206,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,445.56 : 656,106.03 = 137,887.21 : x
  2. Step 2: Convert to fraction form
    437,445.56/656,106.03 = 137,887.21/x
  3. Step 3: Cross multiply
    437,445.56x = 656,106.03 × 137,887.21
  4. Step 4: Simplify right side
    437,445.56x = 90,468,629,940.88
  5. Step 5: Solve for x
    x = 90,468,629,940.88/437,445.56
  6. Step 6: Final answer
    x = 206,811.17

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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.