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Finding the Fourth Proportional to 437,219.28, 655,852.20 and 137,723.28

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Solution

The fourth proportional to 437,219.28, 655,852.20 and 137,723.28 is: 206,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,219.28 : 655,852.20 = 137,723.28 : x
  2. Step 2: Convert to fraction form
    437,219.28/655,852.20 = 137,723.28/x
  3. Step 3: Cross multiply
    437,219.28x = 655,852.20 × 137,723.28
  4. Step 4: Simplify right side
    437,219.28x = 90,326,116,179.22
  5. Step 5: Solve for x
    x = 90,326,116,179.22/437,219.28
  6. Step 6: Final answer
    x = 206,592.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.