Home / 231,218.16-346,855.01-81,427.47

Finding the Fourth Proportional to 231,218.16, 346,855.01 and 81,427.47

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Solution

The fourth proportional to 231,218.16, 346,855.01 and 81,427.47 is: 122,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,218.16 : 346,855.01 = 81,427.47 : x
  2. Step 2: Convert to fraction form
    231,218.16/346,855.01 = 81,427.47/x
  3. Step 3: Cross multiply
    231,218.16x = 346,855.01 × 81,427.47
  4. Step 4: Simplify right side
    231,218.16x = 28,243,525,513.99
  5. Step 5: Solve for x
    x = 28,243,525,513.99/231,218.16
  6. Step 6: Final answer
    x = 122,150.98

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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.