Home / 313,870.12-470,174.82-145,153.96

Finding the Fourth Proportional to 313,870.12, 470,174.82 and 145,153.96

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Solution

The fourth proportional to 313,870.12, 470,174.82 and 145,153.96 is: 217,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,870.12 : 470,174.82 = 145,153.96 : x
  2. Step 2: Convert to fraction form
    313,870.12/470,174.82 = 145,153.96/x
  3. Step 3: Cross multiply
    313,870.12x = 470,174.82 × 145,153.96
  4. Step 4: Simplify right side
    313,870.12x = 68,247,737,015.29
  5. Step 5: Solve for x
    x = 68,247,737,015.29/313,870.12
  6. Step 6: Final answer
    x = 217,439.42

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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.