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Finding the Fourth Proportional to 303,092.64, 418,185.81 and 172,268.46

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Solution

The fourth proportional to 303,092.64, 418,185.81 and 172,268.46 is: 237,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,092.64 : 418,185.81 = 172,268.46 : x
  2. Step 2: Convert to fraction form
    303,092.64/418,185.81 = 172,268.46/x
  3. Step 3: Cross multiply
    303,092.64x = 418,185.81 × 172,268.46
  4. Step 4: Simplify right side
    303,092.64x = 72,040,225,482.55
  5. Step 5: Solve for x
    x = 72,040,225,482.55/303,092.64
  6. Step 6: Final answer
    x = 237,683.85

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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.