Home / 287,060.28-430,619.78-109,716.56

Finding the Fourth Proportional to 287,060.28, 430,619.78 and 109,716.56

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Solution

The fourth proportional to 287,060.28, 430,619.78 and 109,716.56 is: 164,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,060.28 : 430,619.78 = 109,716.56 : x
  2. Step 2: Convert to fraction form
    287,060.28/430,619.78 = 109,716.56/x
  3. Step 3: Cross multiply
    287,060.28x = 430,619.78 × 109,716.56
  4. Step 4: Simplify right side
    287,060.28x = 47,246,120,929.56
  5. Step 5: Solve for x
    x = 47,246,120,929.56/287,060.28
  6. Step 6: Final answer
    x = 164,586.06

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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.