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Finding the Fourth Proportional to 437,563.22, 656,344.83 and 105,139.22

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Solution

The fourth proportional to 437,563.22, 656,344.83 and 105,139.22 is: 157,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,563.22 : 656,344.83 = 105,139.22 : x
  2. Step 2: Convert to fraction form
    437,563.22/656,344.83 = 105,139.22/x
  3. Step 3: Cross multiply
    437,563.22x = 656,344.83 × 105,139.22
  4. Step 4: Simplify right side
    437,563.22x = 69,007,580,195.51
  5. Step 5: Solve for x
    x = 69,007,580,195.51/437,563.22
  6. Step 6: Final answer
    x = 157,708.82

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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.