Home / 313,918.81-470,867.78-136,426.01

Finding the Fourth Proportional to 313,918.81, 470,867.78 and 136,426.01

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Solution

The fourth proportional to 313,918.81, 470,867.78 and 136,426.01 is: 204,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,918.81 : 470,867.78 = 136,426.01 : x
  2. Step 2: Convert to fraction form
    313,918.81/470,867.78 = 136,426.01/x
  3. Step 3: Cross multiply
    313,918.81x = 470,867.78 × 136,426.01
  4. Step 4: Simplify right side
    313,918.81x = 64,238,610,449.68
  5. Step 5: Solve for x
    x = 64,238,610,449.68/313,918.81
  6. Step 6: Final answer
    x = 204,634.48

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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.