Home / 289,939.40-434,930.70-102,926.60

Finding the Fourth Proportional to 289,939.40, 434,930.70 and 102,926.60

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Solution

The fourth proportional to 289,939.40, 434,930.70 and 102,926.60 is: 154,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,939.40 : 434,930.70 = 102,926.60 : x
  2. Step 2: Convert to fraction form
    289,939.40/434,930.70 = 102,926.60/x
  3. Step 3: Cross multiply
    289,939.40x = 434,930.70 × 102,926.60
  4. Step 4: Simplify right side
    289,939.40x = 44,765,938,186.62
  5. Step 5: Solve for x
    x = 44,765,938,186.62/289,939.40
  6. Step 6: Final answer
    x = 154,397.57

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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.