Home / 389,119.15-536,892.87-236,153.89

Finding the Fourth Proportional to 389,119.15, 536,892.87 and 236,153.89

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Solution

The fourth proportional to 389,119.15, 536,892.87 and 236,153.89 is: 325,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,119.15 : 536,892.87 = 236,153.89 : x
  2. Step 2: Convert to fraction form
    389,119.15/536,892.87 = 236,153.89/x
  3. Step 3: Cross multiply
    389,119.15x = 536,892.87 × 236,153.89
  4. Step 4: Simplify right side
    389,119.15x = 126,789,339,763.76
  5. Step 5: Solve for x
    x = 126,789,339,763.76/389,119.15
  6. Step 6: Final answer
    x = 325,836.80

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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.