Home / 309,396.45-464,095.04-84,758.81

Finding the Fourth Proportional to 309,396.45, 464,095.04 and 84,758.81

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Solution

The fourth proportional to 309,396.45, 464,095.04 and 84,758.81 is: 127,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,396.45 : 464,095.04 = 84,758.81 : x
  2. Step 2: Convert to fraction form
    309,396.45/464,095.04 = 84,758.81/x
  3. Step 3: Cross multiply
    309,396.45x = 464,095.04 × 84,758.81
  4. Step 4: Simplify right side
    309,396.45x = 39,336,143,317.30
  5. Step 5: Solve for x
    x = 39,336,143,317.30/309,396.45
  6. Step 6: Final answer
    x = 127,138.31

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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.