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Finding the Fourth Proportional to 266,076.60, 399,114.90 and 260,827.80

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Solution

The fourth proportional to 266,076.60, 399,114.90 and 260,827.80 is: 391,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,076.60 : 399,114.90 = 260,827.80 : x
  2. Step 2: Convert to fraction form
    266,076.60/399,114.90 = 260,827.80/x
  3. Step 3: Cross multiply
    266,076.60x = 399,114.90 × 260,827.80
  4. Step 4: Simplify right side
    266,076.60x = 104,100,261,314.22
  5. Step 5: Solve for x
    x = 104,100,261,314.22/266,076.60
  6. Step 6: Final answer
    x = 391,241.70

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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.