Home / 212,070.20-318,105.30-201,702.20

Finding the Fourth Proportional to 212,070.20, 318,105.30 and 201,702.20

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Solution

The fourth proportional to 212,070.20, 318,105.30 and 201,702.20 is: 302,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,070.20 : 318,105.30 = 201,702.20 : x
  2. Step 2: Convert to fraction form
    212,070.20/318,105.30 = 201,702.20/x
  3. Step 3: Cross multiply
    212,070.20x = 318,105.30 × 201,702.20
  4. Step 4: Simplify right side
    212,070.20x = 64,162,538,841.66
  5. Step 5: Solve for x
    x = 64,162,538,841.66/212,070.20
  6. Step 6: Final answer
    x = 302,553.30

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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.