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Finding the Fourth Proportional to 308,165.55, 425,260.29 and 172,200.62

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Solution

The fourth proportional to 308,165.55, 425,260.29 and 172,200.62 is: 237,632.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,165.55 : 425,260.29 = 172,200.62 : x
  2. Step 2: Convert to fraction form
    308,165.55/425,260.29 = 172,200.62/x
  3. Step 3: Cross multiply
    308,165.55x = 425,260.29 × 172,200.62
  4. Step 4: Simplify right side
    308,165.55x = 73,230,085,599.38
  5. Step 5: Solve for x
    x = 73,230,085,599.38/308,165.55
  6. Step 6: Final answer
    x = 237,632.29

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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.