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Finding the Fourth Proportional to 379,766.22, 523,601.06 and 243,559.86

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Solution

The fourth proportional to 379,766.22, 523,601.06 and 243,559.86 is: 335,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,766.22 : 523,601.06 = 243,559.86 : x
  2. Step 2: Convert to fraction form
    379,766.22/523,601.06 = 243,559.86/x
  3. Step 3: Cross multiply
    379,766.22x = 523,601.06 × 243,559.86
  4. Step 4: Simplify right side
    379,766.22x = 127,528,199,651.65
  5. Step 5: Solve for x
    x = 127,528,199,651.65/379,766.22
  6. Step 6: Final answer
    x = 335,807.12

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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.