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Finding the Fourth Proportional to 309,387.44, 464,230.47 and 169,142.42

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Solution

The fourth proportional to 309,387.44, 464,230.47 and 169,142.42 is: 253,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,387.44 : 464,230.47 = 169,142.42 : x
  2. Step 2: Convert to fraction form
    309,387.44/464,230.47 = 169,142.42/x
  3. Step 3: Cross multiply
    309,387.44x = 464,230.47 × 169,142.42
  4. Step 4: Simplify right side
    309,387.44x = 78,521,065,133.54
  5. Step 5: Solve for x
    x = 78,521,065,133.54/309,387.44
  6. Step 6: Final answer
    x = 253,795.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.