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Finding the Fourth Proportional to 181,857.70, 272,786.55 and 166,111.30

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Solution

The fourth proportional to 181,857.70, 272,786.55 and 166,111.30 is: 249,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,857.70 : 272,786.55 = 166,111.30 : x
  2. Step 2: Convert to fraction form
    181,857.70/272,786.55 = 166,111.30/x
  3. Step 3: Cross multiply
    181,857.70x = 272,786.55 × 166,111.30
  4. Step 4: Simplify right side
    181,857.70x = 45,312,928,443.02
  5. Step 5: Solve for x
    x = 45,312,928,443.02/181,857.70
  6. Step 6: Final answer
    x = 249,166.95

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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.