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Finding the Fourth Proportional to 373,636.98, 515,630.39 and 212,515.20

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Solution

The fourth proportional to 373,636.98, 515,630.39 and 212,515.20 is: 293,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,636.98 : 515,630.39 = 212,515.20 : x
  2. Step 2: Convert to fraction form
    373,636.98/515,630.39 = 212,515.20/x
  3. Step 3: Cross multiply
    373,636.98x = 515,630.39 × 212,515.20
  4. Step 4: Simplify right side
    373,636.98x = 109,579,294,394.35
  5. Step 5: Solve for x
    x = 109,579,294,394.35/373,636.98
  6. Step 6: Final answer
    x = 293,277.43

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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.