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Finding the Fourth Proportional to 323,345.70, 484,807.32 and 154,860.54

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Solution

The fourth proportional to 323,345.70, 484,807.32 and 154,860.54 is: 232,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,345.70 : 484,807.32 = 154,860.54 : x
  2. Step 2: Convert to fraction form
    323,345.70/484,807.32 = 154,860.54/x
  3. Step 3: Cross multiply
    323,345.70x = 484,807.32 × 154,860.54
  4. Step 4: Simplify right side
    323,345.70x = 75,077,523,371.15
  5. Step 5: Solve for x
    x = 75,077,523,371.15/323,345.70
  6. Step 6: Final answer
    x = 232,189.65

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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.