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Finding the Fourth Proportional to 308,633.73, 425,926.67 and 181,308.21

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Solution

The fourth proportional to 308,633.73, 425,926.67 and 181,308.21 is: 250,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,633.73 : 425,926.67 = 181,308.21 : x
  2. Step 2: Convert to fraction form
    308,633.73/425,926.67 = 181,308.21/x
  3. Step 3: Cross multiply
    308,633.73x = 425,926.67 × 181,308.21
  4. Step 4: Simplify right side
    308,633.73x = 77,224,001,222.42
  5. Step 5: Solve for x
    x = 77,224,001,222.42/308,633.73
  6. Step 6: Final answer
    x = 250,212.45

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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.