Home / 305,430.38-458,211.36-92,180.44

Finding the Fourth Proportional to 305,430.38, 458,211.36 and 92,180.44

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Solution

The fourth proportional to 305,430.38, 458,211.36 and 92,180.44 is: 138,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,430.38 : 458,211.36 = 92,180.44 : x
  2. Step 2: Convert to fraction form
    305,430.38/458,211.36 = 92,180.44/x
  3. Step 3: Cross multiply
    305,430.38x = 458,211.36 × 92,180.44
  4. Step 4: Simplify right side
    305,430.38x = 42,238,123,977.95
  5. Step 5: Solve for x
    x = 42,238,123,977.95/305,430.38
  6. Step 6: Final answer
    x = 138,290.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.