Home / 393,144.28-542,584.26-218,731.84

Finding the Fourth Proportional to 393,144.28, 542,584.26 and 218,731.84

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Solution

The fourth proportional to 393,144.28, 542,584.26 and 218,731.84 is: 301,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,144.28 : 542,584.26 = 218,731.84 : x
  2. Step 2: Convert to fraction form
    393,144.28/542,584.26 = 218,731.84/x
  3. Step 3: Cross multiply
    393,144.28x = 542,584.26 × 218,731.84
  4. Step 4: Simplify right side
    393,144.28x = 118,680,453,544.84
  5. Step 5: Solve for x
    x = 118,680,453,544.84/393,144.28
  6. Step 6: Final answer
    x = 301,875.06

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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.