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Finding the Fourth Proportional to 365,981.76, 504,653.76 and 238,420.80

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Solution

The fourth proportional to 365,981.76, 504,653.76 and 238,420.80 is: 328,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,981.76 : 504,653.76 = 238,420.80 : x
  2. Step 2: Convert to fraction form
    365,981.76/504,653.76 = 238,420.80/x
  3. Step 3: Cross multiply
    365,981.76x = 504,653.76 × 238,420.80
  4. Step 4: Simplify right side
    365,981.76x = 120,319,953,182.21
  5. Step 5: Solve for x
    x = 120,319,953,182.21/365,981.76
  6. Step 6: Final answer
    x = 328,759.43

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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.