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Finding the Fourth Proportional to 181,730.40, 272,563.20 and 115,051.20

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Solution

The fourth proportional to 181,730.40, 272,563.20 and 115,051.20 is: 172,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,730.40 : 272,563.20 = 115,051.20 : x
  2. Step 2: Convert to fraction form
    181,730.40/272,563.20 = 115,051.20/x
  3. Step 3: Cross multiply
    181,730.40x = 272,563.20 × 115,051.20
  4. Step 4: Simplify right side
    181,730.40x = 31,358,723,235.84
  5. Step 5: Solve for x
    x = 31,358,723,235.84/181,730.40
  6. Step 6: Final answer
    x = 172,556.29

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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.