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Finding the Fourth Proportional to 329,995.61, 494,993.41 and 172,187.16

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Solution

The fourth proportional to 329,995.61, 494,993.41 and 172,187.16 is: 258,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,995.61 : 494,993.41 = 172,187.16 : x
  2. Step 2: Convert to fraction form
    329,995.61/494,993.41 = 172,187.16/x
  3. Step 3: Cross multiply
    329,995.61x = 494,993.41 × 172,187.16
  4. Step 4: Simplify right side
    329,995.61x = 85,231,509,486.62
  5. Step 5: Solve for x
    x = 85,231,509,486.62/329,995.61
  6. Step 6: Final answer
    x = 258,280.74

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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.