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Finding the Fourth Proportional to 177,661.70, 266,480.40 and 57,716.90

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Solution

The fourth proportional to 177,661.70, 266,480.40 and 57,716.90 is: 86,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,661.70 : 266,480.40 = 57,716.90 : x
  2. Step 2: Convert to fraction form
    177,661.70/266,480.40 = 57,716.90/x
  3. Step 3: Cross multiply
    177,661.70x = 266,480.40 × 57,716.90
  4. Step 4: Simplify right side
    177,661.70x = 15,380,422,598.76
  5. Step 5: Solve for x
    x = 15,380,422,598.76/177,661.70
  6. Step 6: Final answer
    x = 86,571.40

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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.