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Finding the Fourth Proportional to 177,687.40, 266,676.90 and 171,855.40

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Solution

The fourth proportional to 177,687.40, 266,676.90 and 171,855.40 is: 257,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,687.40 : 266,676.90 = 171,855.40 : x
  2. Step 2: Convert to fraction form
    177,687.40/266,676.90 = 171,855.40/x
  3. Step 3: Cross multiply
    177,687.40x = 266,676.90 × 171,855.40
  4. Step 4: Simplify right side
    177,687.40x = 45,829,865,320.26
  5. Step 5: Solve for x
    x = 45,829,865,320.26/177,687.40
  6. Step 6: Final answer
    x = 257,924.11

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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.