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Finding the Fourth Proportional to 285,112.66, 426,945.74 and 171,190.13

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Solution

The fourth proportional to 285,112.66, 426,945.74 and 171,190.13 is: 256,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,112.66 : 426,945.74 = 171,190.13 : x
  2. Step 2: Convert to fraction form
    285,112.66/426,945.74 = 171,190.13/x
  3. Step 3: Cross multiply
    285,112.66x = 426,945.74 × 171,190.13
  4. Step 4: Simplify right side
    285,112.66x = 73,088,893,742.87
  5. Step 5: Solve for x
    x = 73,088,893,742.87/285,112.66
  6. Step 6: Final answer
    x = 256,350.92

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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.