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Finding the Fourth Proportional to 307,529.82, 424,391.32 and 171,563.76

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Solution

The fourth proportional to 307,529.82, 424,391.32 and 171,563.76 is: 236,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,529.82 : 424,391.32 = 171,563.76 : x
  2. Step 2: Convert to fraction form
    307,529.82/424,391.32 = 171,563.76/x
  3. Step 3: Cross multiply
    307,529.82x = 424,391.32 × 171,563.76
  4. Step 4: Simplify right side
    307,529.82x = 72,810,170,570.56
  5. Step 5: Solve for x
    x = 72,810,170,570.56/307,529.82
  6. Step 6: Final answer
    x = 236,758.08

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1.5x scale

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.