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Finding the Fourth Proportional to 279,132.44, 385,239.53 and 271,532.93

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Solution

The fourth proportional to 279,132.44, 385,239.53 and 271,532.93 is: 374,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,132.44 : 385,239.53 = 271,532.93 : x
  2. Step 2: Convert to fraction form
    279,132.44/385,239.53 = 271,532.93/x
  3. Step 3: Cross multiply
    279,132.44x = 385,239.53 × 271,532.93
  4. Step 4: Simplify right side
    279,132.44x = 104,605,216,975.06
  5. Step 5: Solve for x
    x = 104,605,216,975.06/279,132.44
  6. Step 6: Final answer
    x = 374,751.20

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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.