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Finding the Fourth Proportional to 422,125.47, 582,534.08 and 228,535.22

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Solution

The fourth proportional to 422,125.47, 582,534.08 and 228,535.22 is: 315,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,125.47 : 582,534.08 = 228,535.22 : x
  2. Step 2: Convert to fraction form
    422,125.47/582,534.08 = 228,535.22/x
  3. Step 3: Cross multiply
    422,125.47x = 582,534.08 × 228,535.22
  4. Step 4: Simplify right side
    422,125.47x = 133,129,554,130.30
  5. Step 5: Solve for x
    x = 133,129,554,130.30/422,125.47
  6. Step 6: Final answer
    x = 315,379.11

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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.