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Finding the Fourth Proportional to 181,530, 272,304.72 and 56,880.72

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Solution

The fourth proportional to 181,530, 272,304.72 and 56,880.72 is: 85,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,530 : 272,304.72 = 56,880.72 : x
  2. Step 2: Convert to fraction form
    181,530/272,304.72 = 56,880.72/x
  3. Step 3: Cross multiply
    181,530x = 272,304.72 × 56,880.72
  4. Step 4: Simplify right side
    181,530x = 15,488,888,533.00
  5. Step 5: Solve for x
    x = 15,488,888,533.00/181,530
  6. Step 6: Final answer
    x = 85,324.13

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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.