Home / 370,835.92-511,731.84-209,724.76

Finding the Fourth Proportional to 370,835.92, 511,731.84 and 209,724.76

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Solution

The fourth proportional to 370,835.92, 511,731.84 and 209,724.76 is: 289,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,835.92 : 511,731.84 = 209,724.76 : x
  2. Step 2: Convert to fraction form
    370,835.92/511,731.84 = 209,724.76/x
  3. Step 3: Cross multiply
    370,835.92x = 511,731.84 × 209,724.76
  4. Step 4: Simplify right side
    370,835.92x = 107,322,837,328.36
  5. Step 5: Solve for x
    x = 107,322,837,328.36/370,835.92
  6. Step 6: Final answer
    x = 289,407.88

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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.