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Finding the Fourth Proportional to 370,865.52, 511,773 and 217,879.92

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Solution

The fourth proportional to 370,865.52, 511,773 and 217,879.92 is: 300,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,865.52 : 511,773 = 217,879.92 : x
  2. Step 2: Convert to fraction form
    370,865.52/511,773 = 217,879.92/x
  3. Step 3: Cross multiply
    370,865.52x = 511,773 × 217,879.92
  4. Step 4: Simplify right side
    370,865.52x = 111,505,060,298.16
  5. Step 5: Solve for x
    x = 111,505,060,298.16/370,865.52
  6. Step 6: Final answer
    x = 300,661.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.