Home / 384,815.62-530,999.55-212,710.33

Finding the Fourth Proportional to 384,815.62, 530,999.55 and 212,710.33

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Solution

The fourth proportional to 384,815.62, 530,999.55 and 212,710.33 is: 293,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,815.62 : 530,999.55 = 212,710.33 : x
  2. Step 2: Convert to fraction form
    384,815.62/530,999.55 = 212,710.33/x
  3. Step 3: Cross multiply
    384,815.62x = 530,999.55 × 212,710.33
  4. Step 4: Simplify right side
    384,815.62x = 112,949,089,510.35
  5. Step 5: Solve for x
    x = 112,949,089,510.35/384,815.62
  6. Step 6: Final answer
    x = 293,514.83

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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.