Home / 367,400.90-550,588.08-198,557.21

Finding the Fourth Proportional to 367,400.90, 550,588.08 and 198,557.21

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Solution

The fourth proportional to 367,400.90, 550,588.08 and 198,557.21 is: 297,558.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,400.90 : 550,588.08 = 198,557.21 : x
  2. Step 2: Convert to fraction form
    367,400.90/550,588.08 = 198,557.21/x
  3. Step 3: Cross multiply
    367,400.90x = 550,588.08 × 198,557.21
  4. Step 4: Simplify right side
    367,400.90x = 109,323,233,024.06
  5. Step 5: Solve for x
    x = 109,323,233,024.06/367,400.90
  6. Step 6: Final answer
    x = 297,558.42

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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.