Home / 313,965.12-470,963.96-103,619.46

Finding the Fourth Proportional to 313,965.12, 470,963.96 and 103,619.46

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Solution

The fourth proportional to 313,965.12, 470,963.96 and 103,619.46 is: 155,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,965.12 : 470,963.96 = 103,619.46 : x
  2. Step 2: Convert to fraction form
    313,965.12/470,963.96 = 103,619.46/x
  3. Step 3: Cross multiply
    313,965.12x = 470,963.96 × 103,619.46
  4. Step 4: Simplify right side
    313,965.12x = 48,801,031,214.66
  5. Step 5: Solve for x
    x = 48,801,031,214.66/313,965.12
  6. Step 6: Final answer
    x = 155,434.56

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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.