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Finding the Fourth Proportional to 329,125.40, 493,493.70 and 171,661.40

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Solution

The fourth proportional to 329,125.40, 493,493.70 and 171,661.40 is: 257,390.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,125.40 : 493,493.70 = 171,661.40 : x
  2. Step 2: Convert to fraction form
    329,125.40/493,493.70 = 171,661.40/x
  3. Step 3: Cross multiply
    329,125.40x = 493,493.70 × 171,661.40
  4. Step 4: Simplify right side
    329,125.40x = 84,713,819,433.18
  5. Step 5: Solve for x
    x = 84,713,819,433.18/329,125.40
  6. Step 6: Final answer
    x = 257,390.71

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1.5x scale

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.