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Finding the Fourth Proportional to 370,546.52, 511,295.90 and 215,532.09

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Solution

The fourth proportional to 370,546.52, 511,295.90 and 215,532.09 is: 297,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,546.52 : 511,295.90 = 215,532.09 : x
  2. Step 2: Convert to fraction form
    370,546.52/511,295.90 = 215,532.09/x
  3. Step 3: Cross multiply
    370,546.52x = 511,295.90 × 215,532.09
  4. Step 4: Simplify right side
    370,546.52x = 110,200,672,857.77
  5. Step 5: Solve for x
    x = 110,200,672,857.77/370,546.52
  6. Step 6: Final answer
    x = 297,400.38

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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.