Home / 384,618.19-530,771.78-212,531.36

Finding the Fourth Proportional to 384,618.19, 530,771.78 and 212,531.36

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Solution

The fourth proportional to 384,618.19, 530,771.78 and 212,531.36 is: 293,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,618.19 : 530,771.78 = 212,531.36 : x
  2. Step 2: Convert to fraction form
    384,618.19/530,771.78 = 212,531.36/x
  3. Step 3: Cross multiply
    384,618.19x = 530,771.78 × 212,531.36
  4. Step 4: Simplify right side
    384,618.19x = 112,805,648,120.88
  5. Step 5: Solve for x
    x = 112,805,648,120.88/384,618.19
  6. Step 6: Final answer
    x = 293,292.55

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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.