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Finding the Fourth Proportional to 421,751.61, 582,016.59 and 230,764.95

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Solution

The fourth proportional to 421,751.61, 582,016.59 and 230,764.95 is: 318,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,751.61 : 582,016.59 = 230,764.95 : x
  2. Step 2: Convert to fraction form
    421,751.61/582,016.59 = 230,764.95/x
  3. Step 3: Cross multiply
    421,751.61x = 582,016.59 × 230,764.95
  4. Step 4: Simplify right side
    421,751.61x = 134,309,029,290.52
  5. Step 5: Solve for x
    x = 134,309,029,290.52/421,751.61
  6. Step 6: Final answer
    x = 318,455.29

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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.