Home / 289,367.44-434,081.23-79,005.38

Finding the Fourth Proportional to 289,367.44, 434,081.23 and 79,005.38

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Solution

The fourth proportional to 289,367.44, 434,081.23 and 79,005.38 is: 118,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,367.44 : 434,081.23 = 79,005.38 : x
  2. Step 2: Convert to fraction form
    289,367.44/434,081.23 = 79,005.38/x
  3. Step 3: Cross multiply
    289,367.44x = 434,081.23 × 79,005.38
  4. Step 4: Simplify right side
    289,367.44x = 34,294,750,159.10
  5. Step 5: Solve for x
    x = 34,294,750,159.10/289,367.44
  6. Step 6: Final answer
    x = 118,516.27

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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.