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Finding the Fourth Proportional to 308,012.22, 424,897.65 and 194,900.58

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Solution

The fourth proportional to 308,012.22, 424,897.65 and 194,900.58 is: 268,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,012.22 : 424,897.65 = 194,900.58 : x
  2. Step 2: Convert to fraction form
    308,012.22/424,897.65 = 194,900.58/x
  3. Step 3: Cross multiply
    308,012.22x = 424,897.65 × 194,900.58
  4. Step 4: Simplify right side
    308,012.22x = 82,812,798,425.64
  5. Step 5: Solve for x
    x = 82,812,798,425.64/308,012.22
  6. Step 6: Final answer
    x = 268,862.05

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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.