Home / 289,519.11-434,227.59-111,880.08

Finding the Fourth Proportional to 289,519.11, 434,227.59 and 111,880.08

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Solution

The fourth proportional to 289,519.11, 434,227.59 and 111,880.08 is: 167,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,519.11 : 434,227.59 = 111,880.08 : x
  2. Step 2: Convert to fraction form
    289,519.11/434,227.59 = 111,880.08/x
  3. Step 3: Cross multiply
    289,519.11x = 434,227.59 × 111,880.08
  4. Step 4: Simplify right side
    289,519.11x = 48,581,417,507.41
  5. Step 5: Solve for x
    x = 48,581,417,507.41/289,519.11
  6. Step 6: Final answer
    x = 167,800.38

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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.