Home / 275,919.51-380,776.58-155,071.83

Finding the Fourth Proportional to 275,919.51, 380,776.58 and 155,071.83

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Solution

The fourth proportional to 275,919.51, 380,776.58 and 155,071.83 is: 214,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,919.51 : 380,776.58 = 155,071.83 : x
  2. Step 2: Convert to fraction form
    275,919.51/380,776.58 = 155,071.83/x
  3. Step 3: Cross multiply
    275,919.51x = 380,776.58 × 155,071.83
  4. Step 4: Simplify right side
    275,919.51x = 59,047,721,081.74
  5. Step 5: Solve for x
    x = 59,047,721,081.74/275,919.51
  6. Step 6: Final answer
    x = 214,003.43

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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.