Home / 289,555.11-434,387.30-109,694.34

Finding the Fourth Proportional to 289,555.11, 434,387.30 and 109,694.34

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Solution

The fourth proportional to 289,555.11, 434,387.30 and 109,694.34 is: 164,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,555.11 : 434,387.30 = 109,694.34 : x
  2. Step 2: Convert to fraction form
    289,555.11/434,387.30 = 109,694.34/x
  3. Step 3: Cross multiply
    289,555.11x = 434,387.30 × 109,694.34
  4. Step 4: Simplify right side
    289,555.11x = 47,649,827,629.41
  5. Step 5: Solve for x
    x = 47,649,827,629.41/289,555.11
  6. Step 6: Final answer
    x = 164,562.21

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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.