Home / 313,566.12-470,358.10-76,908.60

Finding the Fourth Proportional to 313,566.12, 470,358.10 and 76,908.60

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Solution

The fourth proportional to 313,566.12, 470,358.10 and 76,908.60 is: 115,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,566.12 : 470,358.10 = 76,908.60 : x
  2. Step 2: Convert to fraction form
    313,566.12/470,358.10 = 76,908.60/x
  3. Step 3: Cross multiply
    313,566.12x = 470,358.10 × 76,908.60
  4. Step 4: Simplify right side
    313,566.12x = 36,174,582,969.66
  5. Step 5: Solve for x
    x = 36,174,582,969.66/313,566.12
  6. Step 6: Final answer
    x = 115,365.09

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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.