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Finding the Fourth Proportional to 422,501.80, 583,049.08 and 231,514.68

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Solution

The fourth proportional to 422,501.80, 583,049.08 and 231,514.68 is: 319,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,501.80 : 583,049.08 = 231,514.68 : x
  2. Step 2: Convert to fraction form
    422,501.80/583,049.08 = 231,514.68/x
  3. Step 3: Cross multiply
    422,501.80x = 583,049.08 × 231,514.68
  4. Step 4: Simplify right side
    422,501.80x = 134,984,421,180.49
  5. Step 5: Solve for x
    x = 134,984,421,180.49/422,501.80
  6. Step 6: Final answer
    x = 319,488.39

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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.