Home / 289,386.82-434,172.39-123,222.34

Finding the Fourth Proportional to 289,386.82, 434,172.39 and 123,222.34

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Solution

The fourth proportional to 289,386.82, 434,172.39 and 123,222.34 is: 184,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,386.82 : 434,172.39 = 123,222.34 : x
  2. Step 2: Convert to fraction form
    289,386.82/434,172.39 = 123,222.34/x
  3. Step 3: Cross multiply
    289,386.82x = 434,172.39 × 123,222.34
  4. Step 4: Simplify right side
    289,386.82x = 53,499,737,859.19
  5. Step 5: Solve for x
    x = 53,499,737,859.19/289,386.82
  6. Step 6: Final answer
    x = 184,872.75

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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.