Home / 289,329.21-434,022.54-120,902.19

Finding the Fourth Proportional to 289,329.21, 434,022.54 and 120,902.19

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Solution

The fourth proportional to 289,329.21, 434,022.54 and 120,902.19 is: 181,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,329.21 : 434,022.54 = 120,902.19 : x
  2. Step 2: Convert to fraction form
    289,329.21/434,022.54 = 120,902.19/x
  3. Step 3: Cross multiply
    289,329.21x = 434,022.54 × 120,902.19
  4. Step 4: Simplify right side
    289,329.21x = 52,474,275,595.36
  5. Step 5: Solve for x
    x = 52,474,275,595.36/289,329.21
  6. Step 6: Final answer
    x = 181,365.29

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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.