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Finding the Fourth Proportional to 213,798.30, 295,072.80 and 123,136.62

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Solution

The fourth proportional to 213,798.30, 295,072.80 and 123,136.62 is: 169,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,798.30 : 295,072.80 = 123,136.62 : x
  2. Step 2: Convert to fraction form
    213,798.30/295,072.80 = 123,136.62/x
  3. Step 3: Cross multiply
    213,798.30x = 295,072.80 × 123,136.62
  4. Step 4: Simplify right side
    213,798.30x = 36,334,267,245.94
  5. Step 5: Solve for x
    x = 36,334,267,245.94/213,798.30
  6. Step 6: Final answer
    x = 169,946.47

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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.