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Finding the Fourth Proportional to 613,322, 919,983 and 170,090

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Solution

The fourth proportional to 613,322, 919,983 and 170,090 is: 255,135

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,322 : 919,983 = 170,090 : x
  2. Step 2: Convert to fraction form
    613,322/919,983 = 170,090/x
  3. Step 3: Cross multiply
    613,322x = 919,983 × 170,090
  4. Step 4: Simplify right side
    613,322x = 156,479,908,470
  5. Step 5: Solve for x
    x = 156,479,908,470/613,322
  6. Step 6: Final answer
    x = 255,135

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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.