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Finding the Fourth Proportional to 308,841.12, 426,205.10 and 177,946.44

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Solution

The fourth proportional to 308,841.12, 426,205.10 and 177,946.44 is: 245,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,841.12 : 426,205.10 = 177,946.44 : x
  2. Step 2: Convert to fraction form
    308,841.12/426,205.10 = 177,946.44/x
  3. Step 3: Cross multiply
    308,841.12x = 426,205.10 × 177,946.44
  4. Step 4: Simplify right side
    308,841.12x = 75,841,679,365.11
  5. Step 5: Solve for x
    x = 75,841,679,365.11/308,841.12
  6. Step 6: Final answer
    x = 245,568.59

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1.5x scale

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.