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Finding the Fourth Proportional to 422,600.81, 583,162.67 and 231,600.65

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Solution

The fourth proportional to 422,600.81, 583,162.67 and 231,600.65 is: 319,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,600.81 : 583,162.67 = 231,600.65 : x
  2. Step 2: Convert to fraction form
    422,600.81/583,162.67 = 231,600.65/x
  3. Step 3: Cross multiply
    422,600.81x = 583,162.67 × 231,600.65
  4. Step 4: Simplify right side
    422,600.81x = 135,060,851,090.92
  5. Step 5: Solve for x
    x = 135,060,851,090.92/422,600.81
  6. Step 6: Final answer
    x = 319,594.40

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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.