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Finding the Fourth Proportional to 303,390.75, 418,679.42 and 169,254.75

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Solution

The fourth proportional to 303,390.75, 418,679.42 and 169,254.75 is: 233,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,390.75 : 418,679.42 = 169,254.75 : x
  2. Step 2: Convert to fraction form
    303,390.75/418,679.42 = 169,254.75/x
  3. Step 3: Cross multiply
    303,390.75x = 418,679.42 × 169,254.75
  4. Step 4: Simplify right side
    303,390.75x = 70,863,480,562.25
  5. Step 5: Solve for x
    x = 70,863,480,562.25/303,390.75
  6. Step 6: Final answer
    x = 233,571.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.