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Finding the Fourth Proportional to 613,275.55, 920,066.41 and 213,922.06

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Solution

The fourth proportional to 613,275.55, 920,066.41 and 213,922.06 is: 320,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,275.55 : 920,066.41 = 213,922.06 : x
  2. Step 2: Convert to fraction form
    613,275.55/920,066.41 = 213,922.06/x
  3. Step 3: Cross multiply
    613,275.55x = 920,066.41 × 213,922.06
  4. Step 4: Simplify right side
    613,275.55x = 196,822,497,163.67
  5. Step 5: Solve for x
    x = 196,822,497,163.67/613,275.55
  6. Step 6: Final answer
    x = 320,936.48

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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.