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Finding the Fourth Proportional to 275,610.34, 380,364.33 and 154,759.66

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Solution

The fourth proportional to 275,610.34, 380,364.33 and 154,759.66 is: 213,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,610.34 : 380,364.33 = 154,759.66 : x
  2. Step 2: Convert to fraction form
    275,610.34/380,364.33 = 154,759.66/x
  3. Step 3: Cross multiply
    275,610.34x = 380,364.33 × 154,759.66
  4. Step 4: Simplify right side
    275,610.34x = 58,865,054,386.93
  5. Step 5: Solve for x
    x = 58,865,054,386.93/275,610.34
  6. Step 6: Final answer
    x = 213,580.72

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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.