Home / 384,445.45-530,532.60-212,375.23

Finding the Fourth Proportional to 384,445.45, 530,532.60 and 212,375.23

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Solution

The fourth proportional to 384,445.45, 530,532.60 and 212,375.23 is: 293,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,445.45 : 530,532.60 = 212,375.23 : x
  2. Step 2: Convert to fraction form
    384,445.45/530,532.60 = 212,375.23/x
  3. Step 3: Cross multiply
    384,445.45x = 530,532.60 × 212,375.23
  4. Step 4: Simplify right side
    384,445.45x = 112,671,980,824.76
  5. Step 5: Solve for x
    x = 112,671,980,824.76/384,445.45
  6. Step 6: Final answer
    x = 293,076.64

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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.