Home / 638,924.80-958,501.96-218,102.28

Finding the Fourth Proportional to 638,924.80, 958,501.96 and 218,102.28

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Solution

The fourth proportional to 638,924.80, 958,501.96 and 218,102.28 is: 327,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,924.80 : 958,501.96 = 218,102.28 : x
  2. Step 2: Convert to fraction form
    638,924.80/958,501.96 = 218,102.28/x
  3. Step 3: Cross multiply
    638,924.80x = 958,501.96 × 218,102.28
  4. Step 4: Simplify right side
    638,924.80x = 209,051,462,860.47
  5. Step 5: Solve for x
    x = 209,051,462,860.47/638,924.80
  6. Step 6: Final answer
    x = 327,192.59

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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.