Home / 384,920.46-531,179.15-212,835.42

Finding the Fourth Proportional to 384,920.46, 531,179.15 and 212,835.42

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Solution

The fourth proportional to 384,920.46, 531,179.15 and 212,835.42 is: 293,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,920.46 : 531,179.15 = 212,835.42 : x
  2. Step 2: Convert to fraction form
    384,920.46/531,179.15 = 212,835.42/x
  3. Step 3: Cross multiply
    384,920.46x = 531,179.15 × 212,835.42
  4. Step 4: Simplify right side
    384,920.46x = 113,053,736,421.32
  5. Step 5: Solve for x
    x = 113,053,736,421.32/384,920.46
  6. Step 6: Final answer
    x = 293,706.75

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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.