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Finding the Fourth Proportional to 238,898.16, 329,384.88 and 218,819.88

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Solution

The fourth proportional to 238,898.16, 329,384.88 and 218,819.88 is: 301,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,898.16 : 329,384.88 = 218,819.88 : x
  2. Step 2: Convert to fraction form
    238,898.16/329,384.88 = 218,819.88/x
  3. Step 3: Cross multiply
    238,898.16x = 329,384.88 × 218,819.88
  4. Step 4: Simplify right side
    238,898.16x = 72,075,959,915.41
  5. Step 5: Solve for x
    x = 72,075,959,915.41/238,898.16
  6. Step 6: Final answer
    x = 301,701.61

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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.