Home / 384,618.25-530,771.87-212,531.42

Finding the Fourth Proportional to 384,618.25, 530,771.87 and 212,531.42

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Solution

The fourth proportional to 384,618.25, 530,771.87 and 212,531.42 is: 293,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,618.25 : 530,771.87 = 212,531.42 : x
  2. Step 2: Convert to fraction form
    384,618.25/530,771.87 = 212,531.42/x
  3. Step 3: Cross multiply
    384,618.25x = 530,771.87 × 212,531.42
  4. Step 4: Simplify right side
    384,618.25x = 112,805,699,227.16
  5. Step 5: Solve for x
    x = 112,805,699,227.16/384,618.25
  6. Step 6: Final answer
    x = 293,292.63

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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.