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Finding the Fourth Proportional to 308,482.33, 425,727.31 and 172,528.93

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Solution

The fourth proportional to 308,482.33, 425,727.31 and 172,528.93 is: 238,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,482.33 : 425,727.31 = 172,528.93 : x
  2. Step 2: Convert to fraction form
    308,482.33/425,727.31 = 172,528.93/x
  3. Step 3: Cross multiply
    308,482.33x = 425,727.31 × 172,528.93
  4. Step 4: Simplify right side
    308,482.33x = 73,450,275,770.44
  5. Step 5: Solve for x
    x = 73,450,275,770.44/308,482.33
  6. Step 6: Final answer
    x = 238,102.05

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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.