Home / 393,431.04-542,914.56-214,548.48

Finding the Fourth Proportional to 393,431.04, 542,914.56 and 214,548.48

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Solution

The fourth proportional to 393,431.04, 542,914.56 and 214,548.48 is: 296,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,431.04 : 542,914.56 = 214,548.48 : x
  2. Step 2: Convert to fraction form
    393,431.04/542,914.56 = 214,548.48/x
  3. Step 3: Cross multiply
    393,431.04x = 542,914.56 × 214,548.48
  4. Step 4: Simplify right side
    393,431.04x = 116,481,493,617.87
  5. Step 5: Solve for x
    x = 116,481,493,617.87/393,431.04
  6. Step 6: Final answer
    x = 296,065.85

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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.