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Finding the Fourth Proportional to 385,170.30, 531,668.62 and 264,710.34

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Solution

The fourth proportional to 385,170.30, 531,668.62 and 264,710.34 is: 365,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,170.30 : 531,668.62 = 264,710.34 : x
  2. Step 2: Convert to fraction form
    385,170.30/531,668.62 = 264,710.34/x
  3. Step 3: Cross multiply
    385,170.30x = 531,668.62 × 264,710.34
  4. Step 4: Simplify right side
    385,170.30x = 140,738,181,167.53
  5. Step 5: Solve for x
    x = 140,738,181,167.53/385,170.30
  6. Step 6: Final answer
    x = 365,392.09

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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.