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Finding the Fourth Proportional to 502,630.62, 753,522.04 and 218,106.78

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Solution

The fourth proportional to 502,630.62, 753,522.04 and 218,106.78 is: 326,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,630.62 : 753,522.04 = 218,106.78 : x
  2. Step 2: Convert to fraction form
    502,630.62/753,522.04 = 218,106.78/x
  3. Step 3: Cross multiply
    502,630.62x = 753,522.04 × 218,106.78
  4. Step 4: Simplify right side
    502,630.62x = 164,348,263,250.36
  5. Step 5: Solve for x
    x = 164,348,263,250.36/502,630.62
  6. Step 6: Final answer
    x = 326,976.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.