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Finding the Fourth Proportional to 613,303.67, 920,108.60 and 213,947.75

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Solution

The fourth proportional to 613,303.67, 920,108.60 and 213,947.75 is: 320,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,303.67 : 920,108.60 = 213,947.75 : x
  2. Step 2: Convert to fraction form
    613,303.67/920,108.60 = 213,947.75/x
  3. Step 3: Cross multiply
    613,303.67x = 920,108.60 × 213,947.75
  4. Step 4: Simplify right side
    613,303.67x = 196,855,164,725.65
  5. Step 5: Solve for x
    x = 196,855,164,725.65/613,303.67
  6. Step 6: Final answer
    x = 320,975.03

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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.