Home / 394,148.10-543,924.35-212,860.04

Finding the Fourth Proportional to 394,148.10, 543,924.35 and 212,860.04

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Solution

The fourth proportional to 394,148.10, 543,924.35 and 212,860.04 is: 293,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,148.10 : 543,924.35 = 212,860.04 : x
  2. Step 2: Convert to fraction form
    394,148.10/543,924.35 = 212,860.04/x
  3. Step 3: Cross multiply
    394,148.10x = 543,924.35 × 212,860.04
  4. Step 4: Simplify right side
    394,148.10x = 115,779,755,114.05
  5. Step 5: Solve for x
    x = 115,779,755,114.05/394,148.10
  6. Step 6: Final answer
    x = 293,746.83

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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.