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Finding the Fourth Proportional to 307,529.56, 424,390.98 and 171,563.51

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Solution

The fourth proportional to 307,529.56, 424,390.98 and 171,563.51 is: 236,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,529.56 : 424,390.98 = 171,563.51 : x
  2. Step 2: Convert to fraction form
    307,529.56/424,390.98 = 171,563.51/x
  3. Step 3: Cross multiply
    307,529.56x = 424,390.98 × 171,563.51
  4. Step 4: Simplify right side
    307,529.56x = 72,810,006,880.44
  5. Step 5: Solve for x
    x = 72,810,006,880.44/307,529.56
  6. Step 6: Final answer
    x = 236,757.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.