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Finding the Fourth Proportional to 422,800.96, 583,460.88 and 231,813.88

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Solution

The fourth proportional to 422,800.96, 583,460.88 and 231,813.88 is: 319,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,800.96 : 583,460.88 = 231,813.88 : x
  2. Step 2: Convert to fraction form
    422,800.96/583,460.88 = 231,813.88/x
  3. Step 3: Cross multiply
    422,800.96x = 583,460.88 × 231,813.88
  4. Step 4: Simplify right side
    422,800.96x = 135,254,330,421.01
  5. Step 5: Solve for x
    x = 135,254,330,421.01/422,800.96
  6. Step 6: Final answer
    x = 319,900.72

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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.