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Finding the Fourth Proportional to 275,357.69, 380,000.16 and 154,507.91

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Solution

The fourth proportional to 275,357.69, 380,000.16 and 154,507.91 is: 213,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,357.69 : 380,000.16 = 154,507.91 : x
  2. Step 2: Convert to fraction form
    275,357.69/380,000.16 = 154,507.91/x
  3. Step 3: Cross multiply
    275,357.69x = 380,000.16 × 154,507.91
  4. Step 4: Simplify right side
    275,357.69x = 58,713,029,748.73
  5. Step 5: Solve for x
    x = 58,713,029,748.73/275,357.69
  6. Step 6: Final answer
    x = 213,224.59

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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.