Home / 292,493.07-438,737.58-82,131.21

Finding the Fourth Proportional to 292,493.07, 438,737.58 and 82,131.21

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Solution

The fourth proportional to 292,493.07, 438,737.58 and 82,131.21 is: 123,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,493.07 : 438,737.58 = 82,131.21 : x
  2. Step 2: Convert to fraction form
    292,493.07/438,737.58 = 82,131.21/x
  3. Step 3: Cross multiply
    292,493.07x = 438,737.58 × 82,131.21
  4. Step 4: Simplify right side
    292,493.07x = 36,034,048,317.87
  5. Step 5: Solve for x
    x = 36,034,048,317.87/292,493.07
  6. Step 6: Final answer
    x = 123,196.25

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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.