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Finding the Fourth Proportional to 308,760.40, 426,173.16 and 181,476.88

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Solution

The fourth proportional to 308,760.40, 426,173.16 and 181,476.88 is: 250,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,760.40 : 426,173.16 = 181,476.88 : x
  2. Step 2: Convert to fraction form
    308,760.40/426,173.16 = 181,476.88/x
  3. Step 3: Cross multiply
    308,760.40x = 426,173.16 × 181,476.88
  4. Step 4: Simplify right side
    308,760.40x = 77,340,575,416.54
  5. Step 5: Solve for x
    x = 77,340,575,416.54/308,760.40
  6. Step 6: Final answer
    x = 250,487.35

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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.