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Finding the Fourth Proportional to 181,676.40, 272,975.40 and 161,401.20

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Solution

The fourth proportional to 181,676.40, 272,975.40 and 161,401.20 is: 242,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,676.40 : 272,975.40 = 161,401.20 : x
  2. Step 2: Convert to fraction form
    181,676.40/272,975.40 = 161,401.20/x
  3. Step 3: Cross multiply
    181,676.40x = 272,975.40 × 161,401.20
  4. Step 4: Simplify right side
    181,676.40x = 44,058,557,130.48
  5. Step 5: Solve for x
    x = 44,058,557,130.48/181,676.40
  6. Step 6: Final answer
    x = 242,511.17

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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.