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Finding the Fourth Proportional to 207,086.15, 310,173.91 and 171,140.07

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Solution

The fourth proportional to 207,086.15, 310,173.91 and 171,140.07 is: 256,333.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,086.15 : 310,173.91 = 171,140.07 : x
  2. Step 2: Convert to fraction form
    207,086.15/310,173.91 = 171,140.07/x
  3. Step 3: Cross multiply
    207,086.15x = 310,173.91 × 171,140.07
  4. Step 4: Simplify right side
    207,086.15x = 53,083,185,404.88
  5. Step 5: Solve for x
    x = 53,083,185,404.88/207,086.15
  6. Step 6: Final answer
    x = 256,333.82

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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.