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Finding the Fourth Proportional to 384,825.90, 531,000.26 and 215,027.22

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Solution

The fourth proportional to 384,825.90, 531,000.26 and 215,027.22 is: 296,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,825.90 : 531,000.26 = 215,027.22 : x
  2. Step 2: Convert to fraction form
    384,825.90/531,000.26 = 215,027.22/x
  3. Step 3: Cross multiply
    384,825.90x = 531,000.26 × 215,027.22
  4. Step 4: Simplify right side
    384,825.90x = 114,179,509,727.08
  5. Step 5: Solve for x
    x = 114,179,509,727.08/384,825.90
  6. Step 6: Final answer
    x = 296,704.33

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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.