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Finding the Fourth Proportional to 437,551.70, 655,015.35 and 259,967.30

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Solution

The fourth proportional to 437,551.70, 655,015.35 and 259,967.30 is: 389,171.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,551.70 : 655,015.35 = 259,967.30 : x
  2. Step 2: Convert to fraction form
    437,551.70/655,015.35 = 259,967.30/x
  3. Step 3: Cross multiply
    437,551.70x = 655,015.35 × 259,967.30
  4. Step 4: Simplify right side
    437,551.70x = 170,282,571,998.06
  5. Step 5: Solve for x
    x = 170,282,571,998.06/437,551.70
  6. Step 6: Final answer
    x = 389,171.32

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1.5x scale

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.