Home / 268,998.90-371,206.49-154,195.22

Finding the Fourth Proportional to 268,998.90, 371,206.49 and 154,195.22

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Solution

The fourth proportional to 268,998.90, 371,206.49 and 154,195.22 is: 212,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,998.90 : 371,206.49 = 154,195.22 : x
  2. Step 2: Convert to fraction form
    268,998.90/371,206.49 = 154,195.22/x
  3. Step 3: Cross multiply
    268,998.90x = 371,206.49 × 154,195.22
  4. Step 4: Simplify right side
    268,998.90x = 57,238,264,459.98
  5. Step 5: Solve for x
    x = 57,238,264,459.98/268,998.90
  6. Step 6: Final answer
    x = 212,782.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.