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Finding the Fourth Proportional to 275,740.55, 413,708.03 and 266,020.55

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Solution

The fourth proportional to 275,740.55, 413,708.03 and 266,020.55 is: 399,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,740.55 : 413,708.03 = 266,020.55 : x
  2. Step 2: Convert to fraction form
    275,740.55/413,708.03 = 266,020.55/x
  3. Step 3: Cross multiply
    275,740.55x = 413,708.03 × 266,020.55
  4. Step 4: Simplify right side
    275,740.55x = 110,054,836,349.91
  5. Step 5: Solve for x
    x = 110,054,836,349.91/275,740.55
  6. Step 6: Final answer
    x = 399,124.60

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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.