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Finding the Fourth Proportional to 275,892.93, 380,739.02 and 155,026.98

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Solution

The fourth proportional to 275,892.93, 380,739.02 and 155,026.98 is: 213,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,892.93 : 380,739.02 = 155,026.98 : x
  2. Step 2: Convert to fraction form
    275,892.93/380,739.02 = 155,026.98/x
  3. Step 3: Cross multiply
    275,892.93x = 380,739.02 × 155,026.98
  4. Step 4: Simplify right side
    275,892.93x = 59,024,819,663.62
  5. Step 5: Solve for x
    x = 59,024,819,663.62/275,892.93
  6. Step 6: Final answer
    x = 213,941.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.