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Finding the Fourth Proportional to 265,133, 397,699.48 and 218,287.44

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Solution

The fourth proportional to 265,133, 397,699.48 and 218,287.44 is: 327,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,133 : 397,699.48 = 218,287.44 : x
  2. Step 2: Convert to fraction form
    265,133/397,699.48 = 218,287.44/x
  3. Step 3: Cross multiply
    265,133x = 397,699.48 × 218,287.44
  4. Step 4: Simplify right side
    265,133x = 86,812,801,378.53
  5. Step 5: Solve for x
    x = 86,812,801,378.53/265,133
  6. Step 6: Final answer
    x = 327,431.14

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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.