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Finding the Fourth Proportional to 308,842.67, 426,167.02 and 172,884.17

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Solution

The fourth proportional to 308,842.67, 426,167.02 and 172,884.17 is: 238,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,842.67 : 426,167.02 = 172,884.17 : x
  2. Step 2: Convert to fraction form
    308,842.67/426,167.02 = 172,884.17/x
  3. Step 3: Cross multiply
    308,842.67x = 426,167.02 × 172,884.17
  4. Step 4: Simplify right side
    308,842.67x = 73,677,532,815.60
  5. Step 5: Solve for x
    x = 73,677,532,815.60/308,842.67
  6. Step 6: Final answer
    x = 238,560.08

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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.