Home / 275,456.08-380,136.96-154,604.88

Finding the Fourth Proportional to 275,456.08, 380,136.96 and 154,604.88

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Solution

The fourth proportional to 275,456.08, 380,136.96 and 154,604.88 is: 213,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,456.08 : 380,136.96 = 154,604.88 : x
  2. Step 2: Convert to fraction form
    275,456.08/380,136.96 = 154,604.88/x
  3. Step 3: Cross multiply
    275,456.08x = 380,136.96 × 154,604.88
  4. Step 4: Simplify right side
    275,456.08x = 58,771,029,084.36
  5. Step 5: Solve for x
    x = 58,771,029,084.36/275,456.08
  6. Step 6: Final answer
    x = 213,358.98

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1.5x scale

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.