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Finding the Fourth Proportional to 292,396.30, 437,622.45 and 212,206.30

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Solution

The fourth proportional to 292,396.30, 437,622.45 and 212,206.30 is: 317,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,396.30 : 437,622.45 = 212,206.30 : x
  2. Step 2: Convert to fraction form
    292,396.30/437,622.45 = 212,206.30/x
  3. Step 3: Cross multiply
    292,396.30x = 437,622.45 × 212,206.30
  4. Step 4: Simplify right side
    292,396.30x = 92,866,240,911.44
  5. Step 5: Solve for x
    x = 92,866,240,911.44/292,396.30
  6. Step 6: Final answer
    x = 317,604.02

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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.