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Finding the Fourth Proportional to 366,485.38, 548,979.70 and 188,618.72

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Solution

The fourth proportional to 366,485.38, 548,979.70 and 188,618.72 is: 282,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,485.38 : 548,979.70 = 188,618.72 : x
  2. Step 2: Convert to fraction form
    366,485.38/548,979.70 = 188,618.72/x
  3. Step 3: Cross multiply
    366,485.38x = 548,979.70 × 188,618.72
  4. Step 4: Simplify right side
    366,485.38x = 103,547,847,162.21
  5. Step 5: Solve for x
    x = 103,547,847,162.21/366,485.38
  6. Step 6: Final answer
    x = 282,542.91

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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.