Home / 378,236.27-567,403.59-138,312.81

Finding the Fourth Proportional to 378,236.27, 567,403.59 and 138,312.81

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Solution

The fourth proportional to 378,236.27, 567,403.59 and 138,312.81 is: 207,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,236.27 : 567,403.59 = 138,312.81 : x
  2. Step 2: Convert to fraction form
    378,236.27/567,403.59 = 138,312.81/x
  3. Step 3: Cross multiply
    378,236.27x = 567,403.59 × 138,312.81
  4. Step 4: Simplify right side
    378,236.27x = 78,479,184,936.99
  5. Step 5: Solve for x
    x = 78,479,184,936.99/378,236.27
  6. Step 6: Final answer
    x = 207,487.20

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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.