Home / 274,876.21-379,293.91-153,987.76

Finding the Fourth Proportional to 274,876.21, 379,293.91 and 153,987.76

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Solution

The fourth proportional to 274,876.21, 379,293.91 and 153,987.76 is: 212,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,876.21 : 379,293.91 = 153,987.76 : x
  2. Step 2: Convert to fraction form
    274,876.21/379,293.91 = 153,987.76/x
  3. Step 3: Cross multiply
    274,876.21x = 379,293.91 × 153,987.76
  4. Step 4: Simplify right side
    274,876.21x = 58,406,619,582.54
  5. Step 5: Solve for x
    x = 58,406,619,582.54/274,876.21
  6. Step 6: Final answer
    x = 212,483.36

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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.