Home / 389,123.09-536,898.30-236,157.83

Finding the Fourth Proportional to 389,123.09, 536,898.30 and 236,157.83

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Solution

The fourth proportional to 389,123.09, 536,898.30 and 236,157.83 is: 325,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,123.09 : 536,898.30 = 236,157.83 : x
  2. Step 2: Convert to fraction form
    389,123.09/536,898.30 = 236,157.83/x
  3. Step 3: Cross multiply
    389,123.09x = 536,898.30 × 236,157.83
  4. Step 4: Simplify right side
    389,123.09x = 126,792,737,458.69
  5. Step 5: Solve for x
    x = 126,792,737,458.69/389,123.09
  6. Step 6: Final answer
    x = 325,842.24

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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.