Home / 370,976.29-511,947.30-209,827.87

Finding the Fourth Proportional to 370,976.29, 511,947.30 and 209,827.87

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Solution

The fourth proportional to 370,976.29, 511,947.30 and 209,827.87 is: 289,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,976.29 : 511,947.30 = 209,827.87 : x
  2. Step 2: Convert to fraction form
    370,976.29/511,947.30 = 209,827.87/x
  3. Step 3: Cross multiply
    370,976.29x = 511,947.30 × 209,827.87
  4. Step 4: Simplify right side
    370,976.29x = 107,420,808,951.52
  5. Step 5: Solve for x
    x = 107,420,808,951.52/370,976.29
  6. Step 6: Final answer
    x = 289,562.47

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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.