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Finding the Fourth Proportional to 181,568.80, 272,459.76 and 76,379.68

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Solution

The fourth proportional to 181,568.80, 272,459.76 and 76,379.68 is: 114,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,568.80 : 272,459.76 = 76,379.68 : x
  2. Step 2: Convert to fraction form
    181,568.80/272,459.76 = 76,379.68/x
  3. Step 3: Cross multiply
    181,568.80x = 272,459.76 × 76,379.68
  4. Step 4: Simplify right side
    181,568.80x = 20,810,389,281.68
  5. Step 5: Solve for x
    x = 20,810,389,281.68/181,568.80
  6. Step 6: Final answer
    x = 114,614.35

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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.