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Finding the Fourth Proportional to 384,597.50, 530,733.37 and 212,512.73

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Solution

The fourth proportional to 384,597.50, 530,733.37 and 212,512.73 is: 293,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,597.50 : 530,733.37 = 212,512.73 : x
  2. Step 2: Convert to fraction form
    384,597.50/530,733.37 = 212,512.73/x
  3. Step 3: Cross multiply
    384,597.50x = 530,733.37 × 212,512.73
  4. Step 4: Simplify right side
    384,597.50x = 112,787,597,360.80
  5. Step 5: Solve for x
    x = 112,787,597,360.80/384,597.50
  6. Step 6: Final answer
    x = 293,261.39

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1.5x scale

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.