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Finding the Fourth Proportional to 662,662.12, 993,893.52 and 213,323.56

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Solution

The fourth proportional to 662,662.12, 993,893.52 and 213,323.56 is: 319,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,662.12 : 993,893.52 = 213,323.56 : x
  2. Step 2: Convert to fraction form
    662,662.12/993,893.52 = 213,323.56/x
  3. Step 3: Cross multiply
    662,662.12x = 993,893.52 × 213,323.56
  4. Step 4: Simplify right side
    662,662.12x = 212,020,903,947.33
  5. Step 5: Solve for x
    x = 212,020,903,947.33/662,662.12
  6. Step 6: Final answer
    x = 319,953.26

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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.