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Finding the Fourth Proportional to 342,221.33, 472,268.40 and 191,318.33

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Solution

The fourth proportional to 342,221.33, 472,268.40 and 191,318.33 is: 264,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,221.33 : 472,268.40 = 191,318.33 : x
  2. Step 2: Convert to fraction form
    342,221.33/472,268.40 = 191,318.33/x
  3. Step 3: Cross multiply
    342,221.33x = 472,268.40 × 191,318.33
  4. Step 4: Simplify right side
    342,221.33x = 90,353,601,599.77
  5. Step 5: Solve for x
    x = 90,353,601,599.77/342,221.33
  6. Step 6: Final answer
    x = 264,020.95

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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.