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Finding the Fourth Proportional to 212,312.52, 318,432.60 and 200,601

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Solution

The fourth proportional to 212,312.52, 318,432.60 and 200,601 is: 300,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,312.52 : 318,432.60 = 200,601 : x
  2. Step 2: Convert to fraction form
    212,312.52/318,432.60 = 200,601/x
  3. Step 3: Cross multiply
    212,312.52x = 318,432.60 × 200,601
  4. Step 4: Simplify right side
    212,312.52x = 63,877,897,992.60
  5. Step 5: Solve for x
    x = 63,877,897,992.60/212,312.52
  6. Step 6: Final answer
    x = 300,867.32

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1.5x scale

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.