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Finding the Fourth Proportional to 342,708.37, 472,989.78 and 213,667.77

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Solution

The fourth proportional to 342,708.37, 472,989.78 and 213,667.77 is: 294,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,708.37 : 472,989.78 = 213,667.77 : x
  2. Step 2: Convert to fraction form
    342,708.37/472,989.78 = 213,667.77/x
  3. Step 3: Cross multiply
    342,708.37x = 472,989.78 × 213,667.77
  4. Step 4: Simplify right side
    342,708.37x = 101,062,673,299.10
  5. Step 5: Solve for x
    x = 101,062,673,299.10/342,708.37
  6. Step 6: Final answer
    x = 294,894.09

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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.